S Purkayastha Solutions for Chapter: Compound Interest, Exercise 1: CHECK POINT

Find the difference between compound interests on $₹8000$ for $1\frac{1}{2}$ years at $10\%$ per annum when compounded annually and semi-annually.

Samuel purchased a house from Vikas Parishad on credit. If the cost of the house is $₹2,56,000$ and the rate of interest is $5\%$ compounded semi-annually, find the interest and amount paid by Samuel after $1\frac{1}{2}$ years.

Rampal borrowed $₹25000$at $12\%$ per annum compounded annually. He lent out the whole money on the same day to his friend Sukhbir, but compounded semi-annually. What profit did Rampal make after $18$months?

How much will $₹25000$amount to in $3$ years on compound interest, if the rates for three successful years are $8\%, 10\%$ and $12\%$ respectively and the interest is payable annually?

Ram Singh bought refrigerator for $₹4000$on credit. The rate of interest for the first year is $5\%$ and for the second year is $15\%$. How much will it cost him if he pays the amount after two years?

Find the compound interest on $₹12600$for $2$ years $4$ months at $10\%$ per annum, compounded yearly.

Find the compound interest at the rate of $5\%$ for $3$ years on the principle which in $3$ years at the rate of $5\%$ per annum gives $₹1200$as simple interest.

The simple interest on a certain sum for $2$ years at $12\%$ per annum is $₹2100$. Find the corresponding compound interest