Question

A man donated $5\%$ of his income to a charitable organization and deposited $20\%$ of the remainder in bank. Now if he has $Rs1919$ left, what is his income ?

Answer 1

Let the income be $x,$

Donation $=\frac{5x}{100}$

money left $=x-\frac{5x}{100}=\frac{95x}{100}$

deposit in bank$=\frac{20}{100}\times \frac{95x}{100}$

money left $=\frac{95x}{100}\times \frac{80}{100}=1919$

$x=\frac{100\times 100\times 1919}{95\times 80}=2525$

Income $=2525Rs$