Disha Expert Team Solutions for Chapter: Simple Interest & Compound Interest and Instalments, Exercise 1: Exercise

Nitin borrowed some money at the rate of $6\%$ p.a. for the first three years, $9\%$ p.a. for the next five years and $13\%$ p.a. for the period beyond eight years. If the total interest paid by him at the end of eleven years is $Rs. 8160$, how much money did he borrow?

Akram Ali left an amount of $Rs. 340000$ to be divided between his two sons aged $10$years and $12$years such that both of them would get an equal amount when each attains $18$years of age. What is the share of elder brother if the whole amount was invested at $10\%$ simple interest?

If the difference between $S.I.$ and $C.I.$ for $2$ years on a sum of money lent at $5\%$ is $Rs. 6$, then the sum be _____.

A man borrows $Rs. 12500$ at $20\%$ compound interest. At the end of every year, he pays $Rs. 2000$ as part repayment. How much does he still owe after three such instalments?

A person lent a certain sum of money at $4\%$ simple interest, and in $8$ years the interest amounted to $Rs. 340$ less than the sum lent. Find the sum lent?

The Cl on Rs. 5000 for 3 years at 8% for first year, 10% for second year and 12% for third year will be:

The difference between simple and compound interest for the fourth year is $Rs. 7280$ at $20\%$ p.a. What is the principal sum?

The ratio of CI for $3$ years and SI for $1$ year for a fixed amount at a rate of $r\%$ is $91:25$. What is the value of $r$?