S K Gupta and Anubhuti Gangal Solutions for Chapter: Compound Interest, Exercise 5: Chapter Assessment

Simple interest on $₹800$ for $15$ months at $12\%$ per annum is $₹144$.

If the simple interest on a sum of money at $5\%$ p.a. for $3$ years is $₹1200$, the compound interest for the same sum for the same period at the same rate is

If the difference between the compound interest and simple interest on a certain sum of money for $2$ years at $12\frac{1}{2}\%$ per annum is $₹150$. The sum is

If the amount is $2\frac{1}{4}$ times the sum after $2$ years at compound interest, the rate of interest per annum is 

The time in which $₹1800$ amounts to $₹2178$ at $10\%$ per annum, compounded annually is

The compound interest on a certain sum at $5\%$ p.a. for $2$ years is $₹328$. The simple interest on that sum at the same rate for the same period is

Sudhir borrowed $₹16,000$ from Ashok at $10\%$ simple interest for $1\frac{1}{2}$ years. After $1\frac{1}{2}$ years, when Sudhir was to clear the debt, Ashok insisted Sudhir to pay him compound interest (compounded half yearly). How much more must Sudhir pay?

Find the rate of interest for a sum that becomes $\frac{729}{625}$ times of itself in $2$ years, when compunded annually.