Compound Interest Test - 1

Peter invested a certain sum of money in a simple interest bond. The value became Rs. 3000 at the end of 3 years and Rs. 4000 at the end of another 5 years. At what rate of interest did he invest the sum of money?

The compound interest for an amount of Rs. 1,200 calculated for 2 years, compounded annually is Rs. 123. The rate of interest will be

In December 2010, the number of vultures was 3000 in a habitat that was developed to rear them. If the annual growth rate was aimed at 5%, what is the expected number of vultures to the nearest ones at the end of 2013?

What amount is earned on Rs. 1000 at the rate of 10% per annum for 2 years, if the interest is compounded half yearly?

If Rs. 10,000 is deposited in a bank for a year and the rate of simple interest is 9.2% p.a, what is the total simple interest at the end of the year?

A nest of ants has population of 1000. Every week, its population increases by 12%. What will be the population of the ants to the nearest ones after 3 weeks?

If the compound interest on a certain sum of money at 4% p.a. for 2 years is Rs. 210, what could be the simple interest on the same sum for 2 years at 8% p.a?

How much amount should be invested, if the simple interest on this amount for 3 years at 6% p.a. is Rs. 1240?

A sum of Rs. 1089 becomes Rs. 1296 in two years at a compound interest, which is compounded annually. The rate of interest will be

The amount becomes Rs. 1,323 in two years at 5% p.a. if interest is compounded annually. The amount invested will be

The book value of a lathe machine depreciates at the rate of 20% of its present value. If its cost is Rs. 2000000, then what is its book value at the end of 3 years?

Which of the following could be the compound interest on Rs. 9650 for 2 years at 8.3% per annum?

What will be the compound interest on a certain amount for a year payable half-yearly at the same rate of interest if the simple interest on the same amount for 2 years at 6% per annum is Rs. 840?