Question : A sum of Rs. 400 becomes Rs. 448 at simple interest in 2 years. In how many years will the sum of Rs. 550 amounts to Rs. 682 at the same rate?

Option 1: 2 years

Option 2: 3 years

Option 3: 3.5 years

Option 4: 4 years

Question : An amount becomes double in 8 years on simple interest. In how many years would Rs. 25,000 become Rs. 1,00,000 with the same rate of interest?

Option 1: 32

Option 2: 28

Option 3: 16

Option 4: 24

Question : If the simple interest on a sum of money for 2 years at 5% per annum is Rs. 50, the compound interest on the same at the same rate and for the same time is:

Option 1: Rs. 50.50

Option 2: Rs. 51.25

Option 3: Rs. 51.50

Option 4: Rs. 51.05

Question : The simple interest on a certain sum of money for 2 years at 5% is Rs. 1600. The compound interest at the same rate after 3 years (interest compounded annually) is:

Option 1: Rs. 2520

Option 2: Rs. 2522

Option 3: Rs. 2555

Option 4: Rs. 2535

Question : A sum becomes Rs.15,500 in 7 years on simple interest at the rate of 30 percent per annum. What is the total interest for the 7 years?

Option 1: Rs. 12,200

Option 2: Rs. 1,47,000

Option 3: Rs. 10,500

Option 4: Rs. 11,500