If the side of a square is increased by $30 \%,$ its area is increased by:

What per cent of a day is $3$ hours?

If $P \%$ of $P$ is $36,$ then $P$ is equal to

In an examination,there were $2000$ candidates,out of which $900$ candidates were boys and the rest were girls. If $32 \%$ of the boys and $38 \%$ of the girls passed,then the total percentage of failed candidates is:

$A$ number is decreased by $10 \%$ and then increased by $10 \%$. The number so obtained is $10$ less than the original number. What was the original number?

Visions Pvt. Ltd. appoints a sales representative on a basic salary of $Rs. 1200$ per month, with the condition that for every $Rs. 10000$ of sales made above the initial $Rs. 10000$, he will receive $50\%$ of his basic salary and $10\%$ of that specific $Rs. 10000$ sales as a reward. There is no incentive for the first $Rs. 10000$ of sales. What should be the total value of sales if the sales representative wants to earn $Rs. 7600$ in a particular month?