Arihant Expert Team (AET) Solutions for Exercise 1: CHAPTER EXERCISE

The cost price of $20$ articles is the same as the selling price of $x$ articles, If the profit is $25\%$ then the value of $x$ is:

If the selling price is doubled, the profit triples, then find the profit percent.

A vendor bought toffees at $6$ for a rupee. How many for a rupee must he sell to gain $20\%$?

Rahul purchased $20$ dozens of toys at the rate of $₹375$ per dozen. He sold each one of them at the rate of $₹33$. What was his percentage profit?

At what rate of compound interest per annum will a sum of $Rs.1200$ become $Rs.1348.32$ in $2$ years?

Simple interest on a certain sum of money for $3$ yr at $8\%$ per annum is half the compound interest on $Rs.4000$ for $2$ yr at $10\%$ per annum the sum placed at simple interest is:

If the simple interest on a sum of money for $2$ yr at $5\%$ per annum is $₹50$, what is the compound interest on the same at the same rate and for the same time?

The difference between simple interest and compound interest on $Rs.1200$ for one year at $10\%$ per annum half-yearly is: