Simple Interest Practice Test – Set 4

What is the annual rate of simple interest if a sum of money becomes 7/5 times of itself in 4 years?

A person deposited ₹8,000 in a bank which pays 6% p.a. simple interest for the first 3 years and 8% p.a. for the next 4 years. Find the total interest received after 7 years.

A sum of ₹16,000 is lent at simple interest. The rate of interest is 5% p.a. for the first 2 years, 8% p.a. for the next 3 years, and 10% p.a. for the period beyond 5 years. If the total interest after 8 years is to be calculated, find the total interest.

In how many years will ₹4,000 amount to ₹5,400 at 7% per annum simple interest?

A sum of money quadruples (becomes 4 times) in 15 years at simple interest. What is the rate of interest per annum?