An agent gets a commission of $2.5 \%$ on the sales of cloth. If on a certain day,he gets Rs. $12.50$ as commission,the cloth sold through him on that day is worth?

What percentage of numbers from $1$ to $70$ have squares that end in the digit $1$?

The population of a town is decreased by $20 \%$ and $25 \%$ in two successive years. What per cent population is decreased after two years?

In a recent survey,$40 \%$ of houses contained two or more people. Of those houses containing only one person,$25 \%$ had only a male. What is the percentage of all houses that contain exactly one female and no males (in $\%$)?

The price of a shirt is increased by $15 \%$ and then reduced by $15 \%$. The final price of the shirt

Due to a price hike of $20 \%$, $4 \text{ kg}$ less sugar is available for $₹ 120$. What is the initial price per kg of sugar (in $\text{ per kg}$)?