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 : The simple interest received on a sum at the rate of 8 percent per annum is $\frac{2}{5}$ of the sum. What is the period?

Option 1: 6 years

Option 2: 5 years

Option 3: 4 years

Option 4: 7.5 years

Question : In how many years will the simple interest on a sum of Rs. 6000 lent at 5% per annum be equal to the simple interest on a sum of Rs. 2000 lent for 30 years at 4% per annum?

Option 1: 6 years

Option 2: 12 years

Option 3: 20 years

Option 4: 8 years

Question : The simple interest on a sum for 5 years is $\frac{3}{5}$th of the sum. The rate of interest per annum is:

Option 1: 10%

Option 2: 12%

Option 3: 8%

Option 4: $12\frac{1}{2}$%

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