The difference between compound interest and simple interest on a certain sum of money for 2 years at 5% per annum is ₹ 41/-. What is the sum of money?

• ₹ 7200

• ₹ 9600

• ₹ 16400

• ₹ 16400

A sum of ₹ 2,000/- amounts to ₹ 4,000/- in two years at compound interest. In how many years does the same amount become ₹ 8,000/-?

• 2

• 4

• 6

• 6

13.

The compound interest on Rs. 4000 for 4 years at 10% per annum will be

• Rs. 1856. 40

• Rs. 1600

• Rs . 1856

• Rs . 1856

A sum of money is invested at 20% compound interest (compounded annually). It would fetch Rs. 723 more if interest is compounded half-yearly. The sum is

• Rs. 15,000

• Rs. 30,000

• Rs. 20,000

• Rs. 20,000

When Principal = ₹ S, rate of interest  = 2r % p.a., then a person will get after 3 years at compound interest

The sum of money which becomes ₹ 2420 at 10% rate of compound interest after two years is

• ₹ 2000

• ₹ 1000

• ₹ 2500

• ₹ 2500

On a certain principal, the compound interest compounded annually for the second year at 10% per annum is 

• ₹ 1250

• ₹ 1000

• ₹ 1200

• ₹ 1200

The compound interest on a certain sum of money for 2 years at 5% is ₹328, then the sum is

• ₹ 3000

• ₹ 3600

• ₹ 3200

• ₹ 3400

A man borrows money at 3% per annum interest payable yearly and lend it immediately at 5% interest (compound) payable half-yearly and thereby gains ₹ 330 at the end of the year. The sum borrowed is

• ₹ 17000

• ₹ 16500

• ₹ 15000

• ₹ 15000

If the compound interest on a sum for 2 years at  is ₹ 510, the simple interest on the same sum at the same rate for the same period of time is

• ₹ 400

• ₹ 450

• ₹ 460

• ₹ 460