Question : A sum invested at a certain rate of interest per annum, compounded annually, amounts to INR 3,600 in 2 years and to INR 6,480 in 4 years. What is the sum invested?

Option 1: INR 2,500

Option 2: INR 2,000

Option 3: INR 2,400

Option 4: INR 3,600

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 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 : 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 : What is the simple interest on a principal of INR 24,000 for 4 years at the rate of 5% per annum?

Option 1: INR 4,800

Option 2: INR 3,600

Option 3: INR 5,600

Option 4: INR 5,000