COMPACT Questions (Compound Interest)

1) Two successive increase are 25/2%, 25/2%, find equivalent increase. 425/16

2)  P=? , Time=2 years, R= 25/2% C. I= 6.80.                            25.6

3) P=? , R=50/3%, T=  2 yrs CI=? amount = 1470.             1080, 390

4) A=? , P= ?, R=100/9% t=2 yrs.       567, 700

5) P=? R=15%, t=2 year CI- SI=₹ 2.70, CI= ?          120, 38.70

6) P=?, T=2 years CI- SI=40₹.    2520

7) P= 180000 R=50/3% T=1 yr 73 days, CI= ?                      3700

8) P=? R= 15% T=1 yr 6 months CI=₹ 9.45.                        ₹40

9) P= ? T= 3yr, R=10% , CI=₹6620.   20000

10) P=? , T= 3yrs, R= 15%, CI- SI =1701.       24000

11) P=?, T= 3 years R= 25/2%, CI- SI= 12.50.         256

12) O=?, R= 50/3%, t=3 years CI- SI=₹5.70.                        ₹64.8

13) P=?, T= 3yrs r= 50/3%, 3rd yr CI - 2nd yr CI = 420.                 12960

14) P=?, T= 3yrs, CI- SI= 5.40, R= 109%, 100/7%, 10%, CI= ?.      126, 50

15) p=10800, r=50/3%, t= 2 year 73 days, CI=?                4390

16) p= 20000 r=20% t=1 year 6 months Calculate compound interest when the rate is compound half yearly.     6620

17)p= 8000 r=20% t=1 years, find CI- SI if the rate is compounded quarterly.   124.05

18) If a certain sum of money of ₹225 amounts to ₹256 in two years. Find the rate of compound interest ?     20/3%

19) If a certain sum of money of ₹102400 amounts to ₹145800 in 3 years. Find the rate of CI.          25/2%

20( if a certain sum of money becomes 8 times of itself in 3 years. find the rate of compound interest .        100%

21) At what rate per annum will ₹2304 amount to ₹2500 in two years compounded annually.           25/6%

22) At what rate per annum will ₹ 30200 yield a compound interest of ₹5044 in 9 months intrest being compounded quarterly.                               20%

23) If a certain sum of money becomes ³ times itself in 8 years. In how much time it will 243 times of itself .           40yrs

24) If a certain sum of become double of itsself in 3 years. In how much time it will be 64 times of itself .           18 yrs

25) If a certain sum of money amounts to ₹450 in 5 years and ₹6750 in 10 years. Find principal.                            3000

26) If a certain sum of money amounts to ₹650 in two years and ₹676 in 4 years. Find principal.                            ₹625

27) If a certain sum of money amounts to ₹66300 in 10 years and ₹99450 in 20 yrs. Find the sum                         44200

28) If a certain sum of money becomes ₹8000 in 2 years and ₹2700 in 5 yrs. Find the principal .                     3555.55

29) The simple interest and compound interest on a certain sum of money is ₹400 & ₹410 respectively. Find the principal and rate of interest ? (Time 2 years).                  4000, 5%

30) If the difference between compound and simple interest on a certain sum of money of ₹5000 for 2years is ₹72. Find the rate of interest?             12%

31) At what rate percent the difference of compound and simple interest on a certain sum of money of ₹30720 in 3 years is 1500.                       25/2%

32)  Ratio of 3 years of compound interest and simple interest 1 year on a certain sum of money is 3.64: 1. Find rate percent.                             20%

33) The ratio of difference between compound and simple interest for 3 years to the difference of compound and simple interest for 2 years is 19: 6. Find the rate of interest.                  50/3%

34) A man want to invest ₹16850 in a bank account of his two sons whose ages are12 years and 16 years in such a way so that they will get equal amount at an age of 20 years at the rate of 100/3% per annum . Find the share of younger son.             4050,12800

35) A man purchase a motorbike for a certain price and promise to pay the price in 3 equal annual installments of ₹10800 at the rate of 20% per annum. Find the cost price of motor bike.       22750

36) A man borrowed a sum of ₹25220 from a bank. and promise to pay the amount in 3 annual equal installment at the rate of 5% per annum. Find the value of each installment .           9261

37) A man borrowed a sum of ₹3000 from bank at 30% per annum . He pays back ₹1000 at the end of each year. Calculate how much amount he will pay at the end of third year to clear all his dues.                   3601

38) P= 4000,R=  8% , t= 2 years,.CI- SI= ?                25.60

39) p= 4000 , r= 8%, t= 1 year 3 monthz ,.CI - SI =?           6.40

40) P=?, T= 1 year 6 month, R= 6%, CI= 4590.                              50000

41) P=?, R= 5%, T= 1 years 73 days , CI= 302.50.                         5000

42) P= 8000 R=1%, 2% , 3%, T= 3 years. CI - SI = ?                       0.1106%

43) P=?, T= 3 years R=5%, 4%, 3% , CI= ₹ 12476.                 10000

44) P= ? , T= 1 yr 6 months , r= 4%. CI - SI = ₹204 compounded half yearly.     500000

45) P= 4000 time= 1 yr 6 month r=6% Find the difference between compound interest compounded yrly and semi- annually.                                 ₹3.708

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