USING FORMULA:
A= P(1+ R/100)ᵀ And C. I= A - P Where ,
A= Amount,
P= Principal
R= Rate %
T= Time,
C. I = Compound Interest
It becomes very easy to calculate the compound interest....
EXERCISE - A
1) A sum of Rs6000 is invested for 3 years at 10% p.a compound interest:
a) What is the sum due at the end of the first year ?
b) What is the sum due at the end of the second year?
c) Find the compound interest earned in 2 years.
d) Find the compound interest for the 3rd year.
2) A sum of Rs46875 is invested for 3 years at 4% p.a compound interest:
a) The interest for the 1st year.
b) What is the sum due at the end of the first year ?
b) What is the sum due at the end of the second year?
c) Find the compound interest earned in 2 years.
d) Find the compound interest for the 3rd year.
e) Find the sum at the end of 3rd year.
3) A person invests Rs5600 is invested for 2 years at 14% p.a compound interest:
a) Interest for the first year ?
b) What is the sum due at the end of the first year?
c) Interest for the 2 years, correct to nearest ₹.
4) ₹20000 is lent out for 2yrs months at 10% p.a. compound interest, find
A) the amount at the end of the first year.
B) the amount at the end of the second year.
C) The total amount of compound interest paid.
5) A person invests ₹31250 at 4% per annum compound interest for 3 years. Find
a) the intrest for the first year
b) the amount at the end of 2 years.
c) the intrest for the third year.
6) A sum of Rs9600 is invested for 3 years at 10% p.a compound intrest:
a) what is the sum due at the end of the first year ? Rs10560
b) What is the sum due at the end of the second year? Rs11616
c) Find the compound interest earned in 2 years . Rs2016
d) Find the difference between the answers (b) and (a) and find the interest on this sum for 1 year. Rs1056
e) Hence , write down the compound interest for the third year. Rs1161.60
7) Calculate the compound interest for the second year on Rs8000 invested for 3 years at 10% p.a. Rs880
8) A man invests Rs46875 at 4% per annum compound interest for 3 years. calculate
a) the interest for the first year. Rs1875
b) the amount standing to his credit at the end of the second year. Rs50700
c) the interest for the third year . Rs2028
9) A person invests Rs 5600 at 14% p.a. compound interest for 2 years. Calculate
a) the interest for the first year. Rs784
b) the amount of the end of the first year. Rs6384
c) the interest for the second year correct to nearest Rs. Rs894
10) A person invests Rs 31250 at 4% per annum compound interest for 3 years. Find
a) the interest for the first year. Rs1250
b) the amount at the end of 2 years. Rs33800
c) the interest for the third year. Rs1352
EXERCISE - B
1) Calculate the amount and the compound interest, intrest being compounded annually:
a) P=₹5000, Time =2yrs, R=17/2% p.a.
b) P=₹2500, Time=3/2yrs, R= 12%p.a. 2l
c) Sum=Rs9600, t=3 years, r= 10%.
d) Rs3500 at 10% per annum in 2 years.
e) Rs 6000 in 3 years at 5% per year.
f) ₹24000 for 3 years at 10% per annum. 7944
2) Calculate the amount when:
a) Rs3600 in 3/2 years at 8% per annum.
b) Rs12000 in 5/2 years at 4% per annum.
c) Rs 10000 in 9/4 years at 6% per annum.
3) Find the compound interest on ₹6400 at 35/2 % per annum for 2years.
4) Find the compound interest on 12800 at 15/2% per annum for 3 years.
5) Find the compound interest on Rs 25000 at 10% per annum for 3 years. ₹8275
6) Find the compound interest on ₹8000 at 5% p a for 2 years.
7) Find the compound interest on ₹16000 at 15% p a for 2 years, intrest payable annually.
8) Calculate the compound interest on ₹50000 for 5/2 years at 6%, compounded annually.
9) Calculate the amount of ₹15000 at the end of 2 years 4 months, compounded annually at 6% per annum.
10) Calculate the compound interest due in 5/2 years on 6000 at 10% compound interest.
11) Find the compound interest on ₹4960 for three years at 25/2 % per annum. ₹81
12) Find the compound interest on ₹14000 for 2 years at 5% per annum.
13) Find the compound interest on 5000 for 2 years when the rate of interest is 10% per annum.
14) Salma borrowed from Mahila Samiti a sum of ₹625 to purchase a sewing machine. if the rate of interest is 4% per annum, what is the compound interest that she has to pay after 2 years ?
15) A Man borrows ₹2000 to install a hand pump in his diary. if the rate of interest is 4% per annum.calculate the compound interest that he pay after 3 years.
16) Find the compound interest on ₹ 8000 at 15% per annum for 7/3 years. 3109
17) Find the the compound interest on Rs8000 at 5% p.a. for 2 years. Rs820
18) Find the compound interest on Rs16000 for 2 years at 15% intrest being payable annually. Rs5160
19) Calculate the compound interest on Rs50000 for 5/2 years at 6% p.a, compounded annually. Rs7865.40
20) Calculate the amount of Rs15000 at the end of 2 year 4 months, compounded annually at 6% per annum. Rs17191.08
EXERCISE - C
1) Find Amount of following:
A) Principal = ₹3000, rate= 5% p.a, Time= 2 years.
B) Principal = ₹5000, rate= 10 paise per rupee p.a, Time= 2 years.
C) Principal = ₹625, rate= 4% p.a, Time= 2 years.
D) Principal = ₹2000, rate=4 paise per rupee p.a, Time=3 years.
E) Principal = ₹8000, rate= 15% p.a, Time= 3 years.
) Find the amount of ₹ 31250 for 5/2 years compounded annually, rate of interest being 12% per annum.
) A man bought a refrigerator for ₹8000 on credit. The rate of interest for the first year is 5% and the second year is 15%. How much will it cost him if he pays the amount after 2 years.
EXERCISE - D
1) A man borrowed ₹50000 for 2 years under the following terms: 8% p.a.C.I. for the first year and 10%p.a. C.I. for the second year.
How much interest does he pay in all at the end of 2 years.
2) How much will ₹12500 amount to in 2yrs, at compound interest, if the rates for the successive years be 8% p.a and 10% p.a.
3) How much will ₹25000 amounts to in 2 years, at compound interest, if the rate for the successive are 4% and 5% per year?
4) How much will ₹10000 amounts to in 2 years, at compound interest, if the rate for the successive are 5% and 6% per year?
5) Rs4600 in 2 years, when the rate of interest for successive years is 10% and 12% respectively.
6) What sum will amount to Rs2782.50 in 2 years at C. I., if the rate are 5% and 6% for the successive years?
7) Calculate the amount due in 3 years on Rs5000, when the rate of compound interest for successive years is 6%, 8% and 10% respectively.
8) Rs16000 in 3 years, when the rate of interest for successive years is 5%, 7% and 10% respectively.
9) Find the compound interest on 62500 where the rate of interest is 2% for the first year year , 3% for the second year and 4% for 3rd year.
10) How much will Rs25000 amount to in 2 years, at compound interest, if the rates for the successive years are 4% and 5% per year ? Rs27300
11) How much will Rs10000 amount to in 2 years at compound interest, the rate for successive years being 5%, 6% p.a respectively. Rs11130
EXERCISE -E
2) Calculate the amount and the compound interest, intrest being compounded semi-annually:
a) P=₹6000, Time =1yrs, R=10% p.a. 6615, 615
b) P=₹6250, Time=3/2yrs, R= 8%p.a. 7030.40, 780.40
c) A man borrowed ₹25000 from a finance company at 20% per annum compounded half yearly. What amount of money will discharge his debts after 3/2 years. ₹33275
2) Find out the compound interest on ₹ 32000 for 1 year 6 months at 10% per annum when the interest is payable half yearly.
3) A man puts ₹2000 in a bank in a fixed deposit account for a year. The bank pays compound interest at 8% per year, interest being payable half-yearly. Find the amount of money to the man's credit man's credit after one year.
4) Compute the compound interest on ₹5000 for 3/2 years at 16% per annum, compounded half yearly.
5) Karuna borrowed 57600 from Life Insurance Corporation against her policy at 25/4% per annum to build a house. Find the amount that she pays to the LIC after 3/2 years if the Interest is calculated half yearly. ₹69089.06
6) Find the compound interest on ₹ 8000 for 3/2 years at 10% per annum, interest being payable half yearly.
7) How much would a sum of ₹ 16000 amount to in 2 years time at 10% per annum compound interest, interest being payable half-yearly ?
8) Ram lent ₹40000 to Shyam for a shop at 10% compound interest compounded half yearly. Find the compound interest paid by Shyam after 6 months.
9) Find the compound interest on ₹1000, at the rate of 8% per annum for 3/2 years when interest is compounded half yearly.
10) Salma borrowed ₹64000 from a bank for 3/2 years at the rate 10% per annum. Find the amount paid by her after 3/2 years, If interest is compounded half-yearly.
EXERCISE - F
1) Compute the compound interest on ₹ 8000 for 1 year at 20% per annum compounded quarterly.
2) Find out the compound interest on ₹6400 for 9 months at 10% per annum. If the interest is interest is payable quarterly.
3) Mrs. Malhotra deposited ₹ 10000 in a bank for six months. if the bank pays the bank pays compound interest at 12% per annum reckoned quarterly, find the amount to be received by her on maturity.
4) Find the compound interest on ₹15625 at 16% per per annum, for 9 months when compounded quarterly. ₹1951
5) A man deposited Rs32768 in a bank, where the Interest is credited quarterly. If the rate of interest be 25/2% per annum, How much amount will he receive after 9 months? 35937
6) Find the amount of 12500 for 2 years compounded annually, the rate of interest being 15% for the first year and 16% for the second year. Rs16675
7) Find the compound interest on ₹16000 for 1 year at the rate of 20% per annum, If the interest is compounded quarterly.
8) What will ₹125000 amount to at the rate of 6% , if the interest is calculated after every four months?
EXERCISE - G
1) What sum will becomes ₹5408 after 2 years at 4% per annum when the interest is compounded annually? Rs5000
2) Find the principal, if the compound (compounded annually) at the rate of 10% per annum for 3 years is Rs331.
3) Rachna borrowed a certain sum at the rate of 15% per annum. if she paid at the end of 2 years ₹1290 as interest compounded annually. Find the sum she borrowed.
4) What sum will become ₹ 4913 in 3/2 years, if the rate of interest is 25/2% compounded half yearly.
5) What sum of money will amount to Rs3630 in two years at 10% p.a. compound interest. Rs3000
6) Calculate the sum of money which if lent out on compound interest would amount to ₹13310 at the rate of 10% at the end of 3 yrs. Rs10000
7) On what sum will the compound interest for 2 years at 5% p.a be Rs246. Rs2400
8) What sum of money will amount to Rs37004.40 in 3 years at 5% p.a compound interest ? Rs3200
EXERCISE - H
1) After what time will 5400 yields ₹ 1373.76 as compound interest at 12% per annum? 2yrs.
2) The interest on a sum of Rs 2000 is being compounded annually at the rate of 4% per annum. Find the period for which the compound interest is Rs163.20.
3) In how much time would ₹5000 amount ₹6655 at 10% p.a compound interest ?
4) In how many years will Rs4000 amount to Rs5324 at 10% p.a compound interest? 3 years
5) In what time will a sum of Rs1562.50 produce Rs195.10 at 4% p.a compound interest ? 3 years
6) In how many years will Rs3000 amount to Rs3993 at 10% p.a, compound interest ? 3 years
7) A sum of money Rs25000 invested at 8% p.a compounded semi-annually amounts to Rs28121.60. Compute the time period of investment . 3/2 years
8) In what time will ₹64000 amount to ₹68921 at 5% per annum interest being compounded half yearly?
9) ) ₹20000 amounted to ₹2332.80 at the end of n yrs, at 8% p.a., compound interest, intrest being compounded yrly. Calculate the value of n. 2
EXERCISE - I
1) Find the annual rate of compound interest at which ₹8000 will become ₹10648 after 3 years. 10% p.a
2) Mamta invested ₹1000 in a finance company and received ₹1331 after 3 years. Find the rate of interest percent per annum compounded annually.
3) At what rate percent per annum, compound interest will ₹ 1000 amount to ₹13310 in 3 years.
4) At what rate percent per annum compound interest will Rs 5000 amount to Rs5832 in 2 years ? 8%
5) A certain sum amounts to Rs4840 in 2 years at compound interest and to Rs5324 in 3 years. Find the rate of interest. 10%
6) At what rate percent per annum compound interest will Rs 2304 amount to Rs2500 in two years? 25/6%
7) At what rate % p.a would ₹4000 amount to ₹4630.50, at the end of 3/2 years, compound interest being reckoned semi-annually. 10%
17) ₹1200 lent out on compound interest amounts to ₹1260 in 1 year. Calculate
A) intrest earned for the 2nd year. 63
B) the amount at the end of 2nd yr. 1323
C) the amount at the end of 3 yrs (give answers to the nearest rupee). 1389
) A man borrowed ₹5000 at 8% p.a.C.I. He repays ₹800 at the end of year.
How much does he owe at the beginning of second year? How much does he owe at the beginning of 3rd year. 4600, 4168
7) A man borrowed ₹1280 at 8% p.a.C.I. for 3yrs. At the end of 1 year a sum of ₹200 was paid back and at the end of 2 years a sum of ₹400 was paid back. Calculate the total compund interest paid at the time of setting the account (repaying the loan) at the end of three years. Give answers to the nearest paise. 439.38
8) A man borrowed ₹5000 at 12% p.a.C.I. intrest payable every six months. He repays ₹1800, at the end of every six months. Calculate the final payment he has to make at the end of 18 months, in order to clear the entire debt. 2024.60
) A man borrowed a sum of money and agrees to pay of by paying Rs3150 at the end of the first year and Rs4410 at the end of second year . If the rate of compound interest is 5% per annum, Find the sum borrowed. Rs7000
) A man borrows Rs5800 at 12% per annum compound interest. He repays Rrs1800 at the end of every 6 months. Calculate the amount outstanding at the end of the third payment. Give your answer to the nearest rupee. Rs1177
15) The compound interest on a certain sum for 2 years is ₹1025 and 3 yrs is 1076.25. find the sum and the rate of interest. 5%, 10000
)
) A man invests Rs5000 for 3 years at a certain rate of interest compound annually. At the end of 1 year it amounts to Rs5600, calculate
a) the rate of interest per annum. 12%
b) the interest accrued in the second year. Rs672
c) the amount at the end of the third year. Rs7024.64
) A certain sum of money amounts to Rs5292 in to two years and to Rs5556.60 in 3 years, interest being compounded annually. Find the rate percent. 5%
) At what rate percent, per annum compound interest, would Rs80000 amount to Rs88200 in two years, interest being compounder yearly. 5%
) The compound interest calculated yrly. on a sum of money for two consecutive years is ₹880 and ₹968. Calculate the rate of interest. 10%
) The compound interest calculated yrly. on a sum of money for two consecutive years is ₹225 and ₹247.50 Calculate the rate of interest. 10%, 2250
) The compound interest , calculated yearly, on a certain sum of money for the second year is Rs880 and for the third year in it is Rs968. Calculate the rate of interest and the sum of money. 10%, Rs8000
) A sum of money is invested at compound interest payble annually. The interest in two successive years is Rs225 and Rs240. Find the rate of interest. 20/3
19) A sum of money lent out on C.I double in 3 years. In how many years, would the sum of money (lent out on the same rate of interest) become eight times? 9 years
20) The difference between C.I on a certain sum of money for 2 years at 20% p.a. calculated yrly and the C. I. on the same sum of money, at the rate of interest and the same time calculated half yearly is ₹482. Find the sum of money. 20000
22) The difference between compound interest and simple interest for 2 years at 5% per annum at certain sum of money is ₹ 2.50. Find the sum. ₹1000
34) The difference between the compound interest and the simple interest on a certain sum of money at 10% per annum for 2 years is ₹500. Find the sum when the interest is compounded annually.
35) The difference between the compound interest and the simple interest on a certain sum sum at 15% per annum for 3 years is ₹283.50 Find the sum.
36) Find the compound interest at the rate of 5% for 3 years on that principal which in 3 years at the rate of 5% per annum gives ₹ 1200 as simple interest.
) The compound interest on a certain sum of money at 5% per annum for 2 years is Rs246. Calculate the simple interest on the sum for 3 years at 6% per annum. Rs432
) The simple interest on a certain sum of money for 3 years is Rs105 and the compund intrest for 2 years is Rs70.70. Find the rate percent and the sum . 2%, Rs1750
) The simple interest in 3 years and the compound interest in 2 years on a certain sum at the same rate are Rs1200 and Rs832 respectively . Find
a) the rate of interest per annum. 8%
b) the principle. Rs5000
c) the difference between compound interest and simple interest for 3 years. Rs98.56
) On a certain sum of money, the difference between the compound interest for a year , payable half yearly, and the simple interest for a year is Rs180. Find the sum lent out, if the rate of interest in both the cases is 10% p.a. Rs72000
)A man borrows Rs5000 at 12% compound interest p.a. intrest payable every 6 months. He pays back Rs1800 at the end of every 6 months. Calculate the third payment he had to make at the end of 18 months in order to clear the entire loan. Rs2024.60
) A sum of money is lent out at compound interest for 2 years at 20% p.a., C. I being reckoned yearly. If the same sum of money was lent out at compound interest at the same rate per annum, CI being reckoned half-yearly, it would have fetched Rs482 more by the way of interest. Find the sum of money lent out. Rs20000
) A sum compounded annually becomes 25/16 times of itself in 2 years . Determine the rate of interest per annum. 25%
) Find the difference between the compound interest on Rs8000 for 3/2 years at 10% p.a, when compounded semi-annually and annually. Rs21
) Find the difference between the simple interest and compound interest on Rrss16000 at 8% per annum at the end of 1 year, If the interest is compounded quarterly. Rs38.92
) Manish invests Rs25000 for 2 years at 8% p.a., compounded annually. If 10% of the accrued interest at the end of each year is deducted as income tax, find the amount, he received at the end of 2 years. Rs287296
) A man borrowed Rs5000 for 4 years under the following terms : 4% simple interest for the 5/2 years, 4% compound interest for the rest of the period on the amount due after 5/2 years, the interest being compounded at semi-annually. How much should he pay to settle the amount ? 5836.64 app
) Mr. Khan wants to divide Rs390300 between his two daughters who are 16 years and 18 years old respectively in such a way that the sum invested the rate of 4% per annum compounded annually will give the same amount of each, when they attain the age of 21 years. How should he divide the sum ? 16yers: 187500, 18 years: 202800
) A certain sum of money amounts to Rs57600 in 2 years and to Rs65536 in 4 years at compound interest. Find
a) the rate. 20/3%
b) the sum of money. Rs50625
) A sum of money amounts to Rs12100 in 2 years and to Rs14641 in 4 years at a certain rate of compound interest. Find
a) the rate . 10%
b) sum of the money. Rs10000
) The difference between the compound interest for a year payable half-yearly and the simple interest on a certain sum of money lent out at 10% for a year was Rs15. Find the sum of money lent out. Rs6000
) A person invested Rs10000 for 3 years at a certain rate of interest, compounded annually. At the end of 1 year it amounted to Rs11200. calculate
a) the rate of interest per annum. 12%
b) the interest accrued in the second year. Rs1344
c) the amount of the end of the third year. Rs14049.28
%
) A man borrows Rs1200 for 2 years at compound interest. After one year his money amounts to Rs1275. Find the interest for the second year, correct to the nearest paise. Rs79.69
Find the compounds for 2 years at the rate of 5% for the sum of 2500 compound 10000 for 2 years program in the interest is compound half yearly find the amount in the compound 89 monthly interest is compound in quarterly at the rate of 4% the present cost of a car is 50000 value of the president then what will be the cost of car after 3 years the difference of compound interest for 2 years at the rate of 4% find the sum the difference of @ 4%. 3 system and how many years 1200 will be comes 1323@5% compound in early a bank declared to pay interest compound deposit 1600 1st January 1st July what time interest will he get at the end of the year with fixed rate of interest compound@ interest bank decreases 15 by 427/2% per annum series 600 is find the sum of money is deposes the compound interest for 2 years at the rate of 5% per annum compound annually find the sum Rahul Baroda 8000 Bank to pay motorbike the bank charges what about 2 years and 4 months to clear the loan how much amount will it take it from Bank by depositting 14 yearshow much amount will start get from Bank by depositting 1000 for 3 years is the bank declared the interested of 4% the first year second year 10% for the third year advocate of comparative compound and valuable 7500 becomes 90175 into years Namitha and Kanchan barudi 8400 loan from start the rate of 5% compounded annually both will be call amount after 3 years and 5 years respectively then the find the ratio of the amount borrowed by champion love 3D counter battery in a certain experiment was increasing at the rate of 5% per hour what was the bacteria countdown at the end of 2 hours in the account was initially 50600 p6000 t200 rate 19% per annum compounded annually 62 years 6 months at 12% per compound annually 16 by 2% per annum simple interest on the same day helened to garmi the same rate compound and only what does he can talk to years 3 years ago the population with the annual Namita Barot Rs 15000 Bank the rate of interest is 8% per annum compounded quarterly what is the amount she has to pair the end of 10 monthsSunita and best playing an interest 12% and find amount will get after 3 years compounded annually also find the interest of the third year find the time taken for 8000 amount 9261@5% per annum compound annual the find the compound interest in 2415% per annum compound and only for 2 years the difference between the compound and annual is 108 find the number route Assam compound by 16 times in 2 year determine the red percent and I'm under the electrification program a relay the government could I rectified 5% 10% respectively into years electricity was 25000 to years ago how many villages without electricity the difference between simple and the compound and only at the certain sum for money 2 years at 4% 1 what is the sum find the compound amount compound interest on the principles what is the difference between the compound interest bank offers 5% compound interest calculator on half yearly receives divyanjali Gupta deposit 1600 each of 1st January at the end of year the simple interest at 20 by 3% per annum rupees 600050 find compound interest 500 6% per annum compounded semi annually for 8 years at what rate of compared to animal the sum of 1200 becomes 1348.3 to year in 2 years deposited 1000 Bank 1000 31 Bank gave interest 10% per annum how long did he get the money in the bank what is the least number of comparative in which the sum of money put out 20% compound it will be more than double the difference between compound interest simple interest on the amount 15000 for 2 years age 96 what is the rate of interest per annum find the compound 5000 after 2 years @ interest for the first year 2% but the second year is 4% what will be the amount if some of the one lakh is invested compounds for 3 years with the rate of 11 12 13% some invested compound interest becomes 8 years 814 years what is the rate of interest find the amount to pay the bank after 2 years and 4% per annum 625 in the interest is compounded annually at what rate percent compound and only with 12500 amount 216 years the simple interest on the sum of money for 3 years at 12% per annum is 6750 what will be the compound interest on the same sum at the same rate for the same period on 150000 for 2 years at 10% per anuman compounder and only what is the compound interest on 5% per annum for 2 years compounded annually the difference between compound interest and simple interest for 3 years at the rate of 20% what is the principal what is the sum find the compound test on 8000% per annum for 2 years 4 months compounder and volume the height of the tree increases every year 1 by 8 times the present height of the 364 and what will be the height after 2 years find the compound interest on 16 20% per annum for 9 months compounded find the compound 36% per annum for 9 months compounded quarterly what will be the present notes 169 during 2 years at 4% annually a man sales 200 the end of each other and lens the money at 5% appointed how much will it becomes are there in the 3 years advocate of interest compound 11% a man investor for 3 years compounded at 5% 10% 20% respectively in 3 year the sum amounts to 16632 find the sum 10000 11 12500 a certain sum at compound interest amounts to 12960 in 2 years and 13 in 3 years find the rate percent per annum 4 by 3% 5 / 3% 6 by 5% 75% the compound interest 525 what is the simple interest on the same for double the same time world of compound interest sum of 1200 become 1348.3 2 into years 5% 4% 7% 6% Seema purchase day washing machine 143% for 2 years what amount she has to pay after 2 years if the interest is compounded annually 11000 12000 what will be the difference between simple interest and compound interest and 10% for animal 60.1 562.3064.16.05
) The cost of a car, purchased 2 years ago, depreciates at the rate of 20% p.a, If its present value is Rs315600, find
a) its value after 2 years. Rs201984
b) its value, when it was purchase two years ago. Rs493125
) The population of a town increased at 5% of its population every year. The present population of the town is 21000.
a) What was the population of the town two years ago? 20000
b) What would be the population of the town after 2 years. 22050
) The population of a town 2 years ago was 62,500. Due to migration to cities, it decreases every year at the rate of 4% p.a., Find its present population. 57600
) The present population of a village is 5408. If it has increased at the rate of 4% every year, what was its population two years ago? 5000
) A town has 15625 inhabitants . If the population of the town increases at the rate of 4% p.a., find the number of inhabitants of the town at the end of 3 years. 17576
) The value of property decreases every year at the rate of 5%. If its value is Rs411540, what was its value 3 years ago. 480000
) The value of a machine depreciated by 10% per year during the first two thirds years and 15% per year during the third year. Express the total depreciation of the machine, as percent, during 3 years. 31.15%
) The present population of a town is 17640, if it increases at the rate of 5% per annum, find:
a) its population after 2 years. 194481
b) its population to years ago. 160000
) The population of a town is 64000. If the annual birth rate is 11.7% and the annual death rate is is 4.2%. calculate the population of the town after 3 years. 79507
) The value of a machine depreciates every year by 12% of its value at the beginning of the year. The value of the machine at present is Rs15972. What was its value
a) 2 years back. Rs20625
b) 3 years back. Rs23437.50
) Sujit started a shop by investing Rs30000. In the first year, he incurred a loss of 5%. However, during the second year, he earned a profit of 10%, which in the third year rose to 12%. Calculate the net profit for the entire period of 3 years. Rs51120
) The value of a machine depreciates by 10% every year. If the value of the machine in 2002 was Rs90000. Find its value in
a) 2001. Rs100000
b) 2004. Rs72900
13) The population of a town increased at 5% of its population every year. The present population of the town is 21000.
A) What was the population of the town a year ago? 20000
B) What be the population of the town a year from now? 22050
14) The value of a machine depreciates every year by 12% of its value at the beginning of the year. The value of the machine at present is ₹15972. What was its value
A) 2 years back? 20625
B) 3 years back? 23437.50
) A car was bought for ₹60000 and sold for ₹62000 at the end of 15 months. If money was worth 10% p.a. compound interest, find the loss. 5650
37) The present population of a city is ₹800000. if the rate of growth is 5% per year, find its population after 3 years. 926100
38) The population of a town in the year 1991 was 140000. If the increase during the day next three year be estimated at 5% , 6% and 5% respectively. What will be its population in the year 1994 ? 1636111
39) the population of a certain city is 125000. if the annual birth rate is is 3.3% and the annual death rate is 1.3 % . calculate the population after 3 years.
40) The bacteria in a culture grows by 10% in the third hour, decreases by 10% in the second hour and again increases by 10% in the third hour. if the count of bacteria in the sample is 1210000, what will be the count of bacteria after 3 hours. 131769000
41) A machinery plant costing ₹800000 depreciates in value by 15% annually. Find its value after 3 years. 491300
42) Rahim bought a new car for ₹95000. After using it for two years he sold it out. If its value depreciated 20% and 15% annually respectively, what did he get for the car ? 64000
43) The value of a residential flat constructed at a cost of 100000 is deppreciating at 10% per annum. What will be its value 3 years after construction?
44) Mr. Cerian purchased a boat for₹16000. If the cost of that boat is deprecating at the rate of 5% per annum, calculate its value after 2 years.
45) The Nagarpalika of a certain city started a campaigns to kill stray dogs which numbered 1250 in the City. As a result the population of stray digs started decreasing at the rate of 20% per month. Calculate the number of stray dogs in the City three months after the campaign started.
46) 8000 blood donors were registered with a charitable hospital. Some Student Organisation started mobilising people for this noble cause. As a result the number of donors registered increased at the rate of 20% per half year. Find the total number of new registrant during 3/2 years.
47) the cost of a TV set was quoted as ₹15000 at the beginning of 1996. after a few months, the price was hiked by 5%. Because of decrease in demand, the cost was reduced by 4%in 1997. However, because of some taxes in 1998 budget the price was again hiked by 5%. What is the cost of the TV set at the end of 1998?
48) In the month of January, the railway police caught 4000 ticketless travellers. In February , the number rose by 5%. However, due to constant visit by the police the number reduced by 5% in March and in April it further reduces by 10%. What is the total number of ticketless travelers caught in the month of April ?
49) the population of Pakistan in 1995 was 7.95 x 10⁷. After three years the population became 8.65 x 10⁷. Find the annual rate of increase, if it is given that ³√(8.65/7.95)= 1.02853.
50) The population of a city is 1500000. It increases by 9% in the first year, by 10% in the second year and by 11% in the third year. What will the population be at the end of 3 years.
51) The population of a town increases by 4% every year. It's present population is 540800. What was it 2 years ago ?
52) The population of a town is 64000. If the annual birth rate is 10.7% and the annual death rate in 3.2%, calculate the population after 3 years.
53) Due to migration to cities, the population of a village decreases at the rate of 4% per annum. If its present population is 11520, what it was 2 years ago ?
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