Jharne De and Ranjana Kumar Solutions for Chapter: Simple Interest and Compound Interest, Exercise 4: HOTS (Higher Order Thinking Skills)

At what rate will $₹1,000$ amount to $₹1,331$ in $3$ years if compounded annually?

A sum of $₹64,000$ produces an interest of $₹4,921$ when deposited in a bank for $3$ years. Find the rate of interest.

In how many years will a sum of $₹4,000$ amount to $₹5,290$ at $15\%$ per annum if the interest is compounded annually?

A what rate will a sum of $₹3,200$ produce an interest of $₹672$ in $2$ years if compounded annually?

The difference between compound interest and simple interest at $5\%$ per annum in $2$ years is $₹30$. Find the sum.

Calculate the $CI$ and $SI$ on a sum of $₹ 6,900$ at $7\frac{1}{2}\%$ per annum for $2\frac{1}{3}$ years.

Ankita borrowed a certain amount of money from Parijat for two years at simple interest. Parijat lent the same amount of money to Sanchit at compound interest for two years. At the end of $2$ years, Parijat received $₹ 110$ as compound interest and $₹ 100$ for simple interest. Find the amount given to each person and the rate of interests.

A sum of money given at compound interest doubles itself in $4$ years. In how many years will the amount be eight times