R. Gupta Solutions for Exercise 1: Exercise 1

A bus travels at a speed of $75 \mathrm{km}/\mathrm{h}$ for $45$ minutes and then travels at a speed of $90 \mathrm{km}/\mathrm{h}$ for $45$ minutes. What distance will it cover in one and half hour?

$0.105+1.05+0.515+0.015=?$

Which is the largest fraction?

Average of $8$ numbers is $42$. If $9$ is subtracted from each number then what will be the new average?

What is the ratio of $20$ paisa and Rs. $4$?

A shopkeeper sold a shirt for Rs. $728$ at a loss of $9\%$. If he had sold for Rs. $792$, what would have been the gain/loss percent?

Convert $\frac{9}{10}$ into decimal: