DELHI POLICE MATHS QUIZ

If a sum of money placed at compound interest, compounded annually, doubles itself in 5 years, then the same amount of money will be 8 times of itself in:

The difference between C.I. (Compound Interest) and S.I. (Simple Interest) on sum of Rs. 4,000 for 2 years at $5 \%$ p.a. payable yearly is:

B borrowed Rs. 5000 from A at $6 \%$ p.a. simple interest and lends it to $\mathrm{C}$ at compound interest of $10 \%$ p.a. If B collects the money back from C after 2 years and repays $A$, the profit made by $\mathrm{B}$ in the transaction is:

Divide Rs. 15,494 between $A$ and $B$ so that A's share at the end of 9 years may be equal to B's share at the end of 11 years, compound interest being $20 \%$ per annum. Then A's share is:

On a certain sum of money, the simple interest for 2 years is Rs. 200 at the rate of $7 \%$ per annum. Find the difference in CI and SI.

Kaya invests Rs 5,000 in a bond which gives interest at $4 \%$ per annum during the first year, $5 \%$ during the second year and $10 \%$ during the third year. Find total savings with interest.

0n what sum will the difference between the simple and compound interests for 3 years at 4 per cent per annum amount to Rs. $3.04$ ?

If the compound interest on a sum for 2 years at $12 \frac{1}{2} \%$ per annum is Rs. 510, the simple interest on the same sum at the same rate for the same period of time is :