Question : How long will it take for a sum of INR 450 to accumulate INR 81 in interest at a simple interest rate of 4.5% per annum?

Option 1: 4.5 years

Option 2: 4 years

Option 3: 3 years

Option 4: 3.5 years

Question : The simple interest on a certain sum for 3 years at 8% per annum is INR 9120 less than the simple interest on the same sum for 7 years at 8% per annum. Find the sum.

Option 1: INR 28,500

Option 2: INR 28,250

Option 3: INR 28,750

Option 4: INR 28,000

Question : A sum of Rs. 2,000 becomes Rs. 3,120 in two years at a certain rate of simple interest. What is the rate of interest per annum?

Option 1: 34% per annum

Option 2: 33% per annum

Option 3: 30% per annum

Option 4: 28% per annum

Question : A sum of INR 12,000 amounts to INR 15,000 in 5 years at the rate of simple interest. What is the rate of interest per annum?

Option 1: 8%

Option 2: 7%

Option 3: 6%

Option 4: 5%

Question : The simple interest on a sum of money in 6 years at the rate of 15% per annum is INR 1,440 less than the simple interest accrued on the same sum in 9 years at 18% per annum. What is the sum of money (in INR)?

Option 1: 1800

Option 2: 2000

Option 3: 2700

Option 4: 2400

Question : A man borrowed a certain sum of money at the rate of 10% per annum simple interest for the first three years and 15% per annum simple interest for the period beyond three years. If he pays a total interest of INR 2,884.50 at the end of 7 years, then the sum of money (in INR) that he borrowed is:

Option 1: 3,860

Option 2: 3,090

Option 3: 4,550

Option 4: 3,205