Simple Interest Practice Test – Set 3

A person deposited ₹15,600 in a bank at 10% per annum simple interest. After how many years will the interest earned be equal to ₹7,800 ?

If a sum of money doubles itself in 12 years at simple interest, what is the rate of interest per annum?

A man borrowed ₹25,000 from two financial institutions. For one loan, he paid 12% p.a. simple interest and for the other 14% p.a. If the total interest paid in one year was ₹3,260, how much did he borrow at 12% p.a.?

A sum of ₹8,400 amounts to ₹11,046 in 3.5 years at a certain rate of simple interest p.a. What will be the simple interest on a sum of ₹10,800 at the same rate for 4.5 years?

A certain sum at simple interest becomes ₹1,200 in 2 years and ₹1,500 in 5 years. Find the principal sum and the rate of interest.