Question

Ajay gets $20\%$ less marks then that of Vatsal's marks. By what per cent Vatsal's marks is more then Ajay's marks?

Answer 1

$\Rightarrow$ Let Vatsal's marks be $100x$

$\Rightarrow$ Then Ajay's marks $=100x-20x=80x$

$\Rightarrow$ Difference of Vatsal's and Ajay's marks $=100x-80x=20x$

$\Rightarrow$ Percent Vatsal's marks are more than Ajay's marks $=\frac{20x}{80x}\times 100=25\%$