Simple Interest Practice Test – Set 3

A sum of money quadruples itself in 18 years at simple interest. In how many years will it become 6 times itself?

A part of ₹20,000 was invested at 5% p.a. and the rest at 8% p.a. simple interest. If the total interest earned in 2 years is ₹2,600, find the amount invested at 5% p.a.

If a principal sum of ₹5,000 amounts to ₹6,500 in 3 years at simple interest, what will it amount to in 5 years at the same rate?

The simple interest on a sum of money at 7% p.a. for 4 years is ₹840 . What is the simple interest on the same sum at 10% p.a. for 3 years?

At what rate percent per annum simple interest will ₹4,500 yield ₹1,350 as interest in 5 years?