$32.05 \% \text{ of } 259.99 = ?$

$40 \%$ of $1640 + ? = 35 \%$ of $980 + 150 \%$ of $850$

If the price of a shirt is increased by $25 \%$ and then decreased by $30 \%$,then what will be the net effect?

If the income of $R$ is $30 \%$ more than the income of $Q$ and the income of $Q$ is $20 \%$ more than the income of $P$,then the income of $R$ is how much percent more than the income of $P$ (in $\%$)?

If the length of a rectangle is increased by $20 \%$ and its breadth is decreased by $10 \%$,what will be the impact on its perimeter?

Suresh gave $40 \%$ of his income to his wife. He gave $25 \%$ of the remaining amount to his son. Of the remaining amount,he spent $60 \%$ on education. Now,the amount with him is $₹ 2700$. What is the amount he gave to his wife?