Question

Srawan spends 20% of his monthly salary on food, 40% of the remaining on house rent & balance amount spends on other items of routine expense. What is his yearly salary if he spends Rs. 5760 per month on other items of routine expenses ?

• A. Rs.1,20,000
• B. Rs.2,44,000
• C. Rs.1,44,000
• D. Rs.l,54,000

Answer 1

The correct option is C Rs.1,44,000

Let the monthly salary be Rs x and food expenses be
$Rsx\times a\frac{20}{100}=Rs\frac{x}{5}$
House rent $=Rs\frac{8x}{25}$
Hence, $\frac{12x}{25}=57600$
$x=12000$
and $12x=144000$