The number which exceeds $16 \%$ of it by $42$ is:

Sonal spent $Rs. 45760$ on the interior decoration for her home,$Rs. 27896$ on buying an air conditioner,and the remaining $28 \%$ of the total amount she had as cash with her. What was the total amount?

In an examination,$35 \%$ of the students passed and $455$ failed. How many students appeared for the examination?

An agent sells goods of value of Rs. $15000$. The commission which he receives is $12 \frac{1}{2} \%$. What is the commission amount?

Raman scored $456$ marks in an examination and Seeta got $54 \%$ marks in the same examination,which is $24$ marks less than Raman. If the minimum passing marks in the examination is $34 \%$,then how many more marks did Raman score than the minimum passing marks?

If the price of a book is first decreased by $25 \%$ and then increased by $20 \%,$ then the net change in the price will be