(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

Calculate the amount and the compound interest for the following, when cornpounded half-yearly: 

Rs 6,000 for `1 1/2` years at 10 % p.a. 

Calculate the amount and the compouncl interest of the following: 

Rs 9,125 for 2 years if tl1e rates of interest are 12% and 14 % for the successive years. 

Calculate the amount and the compound interest for the following: 

Rs 20,000 for 2 years if the rates of interest are `12 1/4` and `5 1/2` for the successive years.

Find the difference betlween the compound interest compounded yearly and half-yearly for the following: 

Rs 15,000 for `1 1/2` years at 12 % p.a.

Find the difference between the compound interest compounded yearly and half-yearly for the following: 

Rs 20,000 for `1 1/2` years at 16 %  p.a.

On what sum will the difference between compound interest and the simple interest for 2 years at `7 1/2` %  be Rs 22.50 ? 

On what sum will the difference between compound interest and the simple interest for 3 years at 12% be Rs 1,123.20?

The population of a town in the year 2005 was 4, 25,000. Find its population in the year 2007 if the rate of annual increase is 4% per year.

The population of a city is 1, 25,000. If the annual birth rate and death rate are 5.5% and 3.5% respectively, calculate the population of the city after 3 years.

The population of a village increases at the rate of 50 per thousand. Its population after 2 years will be 22,050. Find the present population.

In a factory the production of scooters rose to 46,305 from 40,000 in 3 years. Find the annual rate of growth of the production of scooters.

The present population of a town is 1, 15200.If it increases at the rate of `6 2/3`% per annum , find

Its population after 2 years 

The present population of a town is 1, 
0/o per annum 1, 15,200. If it increases at the rate of `6 2/3` % per annum find  
Its population 2 years ago.

A machine was purchased 2 years ago. Its value decreases by 10% every year. Its present value is Rs 19,083.60. For how much money was the machine purchased?

The population of a city is 24,000. In the next 3 years it will be 27,783. Find the rate of growth of the population.

Under the electrification programme of villages, the number of villages with electricity rose to 27,040 from 25,000 in 2 years. Find the rate of growth in the number of villages with electricity.

A new car is purchased for Rs 4, 00,000 .Its value depreciates at the rate of 10% per annum. What will be its value after 4 years?

The value of a property decreases every year at the rate of 5%. If its value at the end of 3 years be Rs 44,540, what was the original value at the beginning of these 3 years?

The value of the refrigerator which was purchased 2 years ago, depreciates at 12% per annum. If its present value is Rs 9,680. For how much was it purchased?

A building worth Rs 1, 33,100 is constructed on a plot of land worth Rs 72,900. After how many years will the values of both be same, if the land appreciates at 10% p.a. and the building depreciates at 10% p.a.?