Simple Interest Practice Test – Set 4

A borrowed a loan of ₹15,000 from B at 9% p.a. simple interest for 3 years. He added some more money and lent it to C at 12% p.a. simple interest for 3 years. If he earned a total profit of ₹1,800 in the transaction, find the extra money he added.

The simple interest on a sum of money is 1/9 of the principal and the number of years is equal to the rate percent per annum. Find the rate per annum.

A sum of ₹14,400 is divided into two parts such that the simple interest on the first part at 6% p.a. for 4 years equals the simple interest on the second part at 8% p.a. for 3 years. Find the first part.

If a sum of money doubles itself in 5 years at simple interest, in how many years will it become 4 times itself at the same rate?

A sum of ₹9,600 amounts to ₹12,480 in 3 years at simple interest. What will the same sum amount to in 5 years at the same rate?