Question : A sum of money at simple interest amounts to INR 800 in 3 years and to INR 900 in 4 years. The sum is:

Option 1: INR 800

Option 2: INR 600

Option 3: INR 500

Option 4: INR 700

Question : A sum of money at simple interest amounts to INR 212 in 2 years and to INR 224 in 4 years. The sum is:

Option 1: INR 400

Option 2: INR 200

Option 3: INR 100

Option 4: INR 500

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 : A sum of Rs. 500 becomes Rs. 580 at simple interest in 2 years. In how many years will the sum of Rs. 650 amounts to Rs. 858 at the same rate of simple interest?

Option 1: 4 years

Option 2: 8 years

Option 3: 5 years

Option 4: 6 years

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