Simple Interest Practice Test – Set 4

A sum of ₹18,000 is lent at simple interest of 10% p.a. for 3 years. Find the total amount returned after 3 years.

If ₹12,500 amounts to ₹15,500 in 4 years at simple interest, what is the rate of interest per annum?

A sum of money amounts to ₹7,200 in 2 years and to ₹10,200 in 7 years at simple interest. Find the sum.

In how many years will a sum of money double itself at 12.5% per annum simple interest?

The simple interest on a certain sum for 3.5 years at 8% per annum is ₹280 less than the simple interest on the same sum for 4.5 years at 7% per annum. Find the sum.