Quantitative Aptitude Compound Interest 1

1. At what rate of compound interest per annurn will a sum of Rs. 1200 become Rs. 1348.32 in 2 years ?

2. To find out the total compound interest accrued on a sum of money after 5 years, which of the following information given in the statements P and Q will be sufficient?
P : The sum was Rs. 20000.
Q : The total amount of simple interest on the sum after 5 years was Rs. 4000.

3. A tree increases annually by 1/8 th of its height. By how much will it increase after 2 years, if it stands today 64 cm high?

4. The compound interest on Rs. 20480 at 6 1/4 % per annum for 2 years 73 days, is:

5. To find out the total compound interest accrued, on a sum of money after 5 years, which of the following in formations given in the statements A and B is/are sufficient?
A : the rate of interest was 6% per annum.
B : the total simple interest on the same amount after 5 years at the same rate will be Rs. 600.

6. A sum of money placed at compound interest doubles itself in 5 years.It will amount to eight times itself in:

7. The difference between the compound interests on Rs. 1600 for one year at 20% per annum, when compounded half yearly and quarterly is:

8. A man borrowed Rs. 800 at 10% per annum simple interest and immediately lent the whole sum at 10% per annum compound interest. What does he gain at the end of 2 years ?

9. A man borrows Rs. 12500 from a bank at 20% compound interest. At the end of every year he pays Rs. 2000 as part repayment. How much does he still owe to the bank after three such instalments?

10. The difference between simple interest and compound interest on Rs. 1200 for one year at 10% per annum., reckoned half-yearly is: