$A, B, C$ are three students. $A$ got $18 \%$ more marks than $B$ and $12 \%$ less than $C$. If $B$ got $220$ marks,how many marks did $C$ get?

Rohit spends $40 \%$ of his salary on food,$20 \%$ on house rent,$10 \%$ on entertainment,and $10 \%$ on conveyance. If his savings at the end of a month are $₹ 1500$,then his monthly salary is:

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?

$67 \%$ of $801 - 231.17 = ? - 23 \%$ of $789$

If $A$'s height is $40 \%$ less than that of $B$,how much percent is $B$'s height more than that of $A$?

For a rectangle,the length and breadth are increased by $10 \%$ and $20 \%$,respectively. The percentage increase in area is: