Question : The simple interest received on a sum for 20 years is $\frac{3}{5}$ of the sum. What is the annual rate of interest?

Option 1: 3%

Option 2: 4%

Option 3: 5%

Option 4: 6%

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 : A person lends a certain sum of money at the annual rate of 8% on simple interest and the interest received in 9 years is INR 560 less than the sum lent. What is the sum lent?

Option 1: INR 560

Option 2: INR 1,000

Option 3: INR 2,000

Option 4: INR 1,120

Question : On a certain sum, simple interest at the annual rate of 12% for 6 years is Rs. 28800. What will be the compound interest on the same sum at the annual rate of 20% (compounding annually) for 2 years?

Option 1: Rs. 17600

Option 2: Rs. 19200

Option 3: Rs. 12000

Option 4: Rs. 14400

Question : At the same rate of simple interest sum of the interest of Rs. 300 for 4 years and the interest of Rs. 400 for 3 years is 120. The rate of interest is:

Option 1: 5%

Option 2: 4%

Option 3: 6%

Option 4: 10%