S Purkayastha Solutions for Chapter: Compound Interest, Exercise 2: CHECK POINT

At what rate percent compound interest will the sum of $₹3200$ amount to$₹5529.60$ in $3$ years?

Mohit borrowed $₹8000$from Anwar at $11\%$ p.a. compound interest. After some time, he clear the amount by paying $₹9856.80$ to Anwar. For how much time did he keep the money?

The simple interest on a sum of money for $4$ years at $12\%$ per annum is $₹3600$. Find the compound interest on the same sum at the same rate for $1$ year, compounded half-yearly.

On a certain sum of money, lent out $16\%$ per annum, the difference between the compound interest for $1$ year, payable half-yearly and the simple interest for $1$ year is $₹56$. Find the sum.

Reena borrowed from Kamal certain sum for two years at simple interest. Reena lent this sum to Hamid at the same rate for two years compound interest. At the end of two years, she received $₹110$ as compound interest but paid $₹100$ as simple interest. Find the sum and the rate of interest.

Find the rate percent per annum if $₹2000$amounts to $₹2315.25$ in $1\frac{1}{2}$ years, the interest being compounded half-yearly.

Compound interest and simple interest on a certain sum for $2$ years are $₹104$ and $₹100$respectively. Find the rate percent and the principal.

On a certain sum, borrowed at $10\%$ per annum for $1$ year, the difference between the compound interest reckoned half-yearly and that reckoned quarterly is $₹33.61$. Calculate the sum.