R. D. Sharma Solutions for Chapter: Compound Interest, Exercise 1: EXERCISE

MewaLal borrowed $\mathrm{₹}\mathrm{}20000$ from his friend Rooplal at $18\mathrm{\%}$ per annum simple interest. He lent it to Rampal at the same rate but compounded annually. Find his gain after $2\mathrm{}\mathrm{y}\mathrm{e}\mathrm{a}\mathrm{r}\mathrm{s}$.

Find the compound interest on $\mathrm{Rs} 8000$ for $9$months at $20\%$ per annum compounded quarterly.

Find the compound interest at the rate of $10\mathrm{\%}$ per annum for two years on that principal which in two years at the rate of $10\mathrm{\%}$ per annum gives $\mathrm{₹}200$ as simple interest.

Find the compound interest on $\mathrm{₹}\mathrm{}64000$ for $1\mathrm{}\mathrm{y}\mathrm{e}\mathrm{a}\mathrm{r}$ at the rate of $10\mathrm{\%}$ per annum compounded quarterly.

 Ramesh deposited $₹7500$  in a bank which pays him $12\%$  interest compounded quarterly. What is the amount which he receives after $9$ months?

Anil borrowed a sum of $\mathrm{₹}\mathrm{}9600$ to install a hand pump in his dairy. If the rate of interest is $5\frac{1}{2}\mathrm{\%}$ per annum compounded annually, determine the compound interest which Anil will have to pay after $3\mathrm{}\mathrm{y}\mathrm{e}\mathrm{a}\mathrm{r}\mathrm{s}$

Surabhi borrowed a sum of $₹12000$ from a finance company to purchase a refrigerator. If the rate of interest is $5\mathrm{\%}$ per annum compounded annually, calculate the compound interest that Surabhi has to pay the company after $3 \mathrm{y}\mathrm{e}\mathrm{a}\mathrm{r}\mathrm{s}$.

Daljit received a sum of $\mathrm{₹}40000$ as a loan from a finance company. If the rate of interest is $7\mathrm{\%}$ per annum compounded annually, calculate the compound interest that Daljit pays after $2\mathrm{}\mathrm{y}\mathrm{e}\mathrm{a}\mathrm{r}\mathrm{s}$