Question : At a certain rate of simple interest per annum, a certain sum amounts to INR 24,000 in 7 years and to INR 32,000 in 12 years. What is the rate of simple interest paid per annum?

Option 1: 15%

Option 2: 25%

Option 3: 12.5%

Option 4: 20%

Question : On a certain sum of money, the simple interest for 2 years is INR 150 at the rate of 10% per annum. What is the difference between compound interest and simple interest for 2 years if, in the case of compound interest, interest is compounded annually at the rate of 10% per annum?

Option 1: INR 5

Option 2: INR 10

Option 3: INR 7.5

Option 4: INR 12.5

Question : A sum of money, invested at a certain rate of simple interest per annum, amounts to INR 720 in 4 years and to INR 800 in 5 years. The sum invested is:

Option 1: INR 400

Option 2: INR 600

Option 3: INR 500

Option 4: INR 360

Question : The difference between the compound interest and the simple interest on an amount of INR 1,500 for 2 years, at a given rate of interest per annum, is INR 60. What is the rate of interest per annum, if in the case of compound interest, the interest is compounded annually?

Option 1: 20%

Option 2: 15%

Option 3: 25%

Option 4: 12.5%

Question : The simple interest on a certain sum of money for 2 years at 7% per annum is double the compound interest on INR 1,000 for 2 years at 10% per annum, compounded annually. What is the sum placed on simple interest?

Option 1: INR 1,000

Option 2: INR 2,000

Option 3: INR 3,000

Option 4: INR 4,000

Question : A sum of INR 2000 will become INR 2400 in 12 months at some rate of simple interest. Find the rate of interest per annum.

Option 1: 25%

Option 2: 20%

Option 3: 40%

Option 4: 45%