What Are Chit Funds & How You Can Get 10% FD Interest

What principal will amount to Rs 900 in 6 years at 10% simple interest?

The simple interest on a certain sum of money at the rate of 5% p.a. for 8 years is Rs 840. At what rate of interest the same amount of interest can be received on the same sum after 5 years? (a) 6% (b) 8% (c) 9% (d) 10%

Find the compound interest on Rs 8000 for years at 10% per annum, interest being payable half-yearly.

In how many years any amount will be doubled at rate of 10% simple interest annually?