Question

Alka spend $90\%$ of the amount sent to her and saves Rs. $120$ per month. Find the amount sent to her per month .

Answer 1

She sent 90% of the amount .

So, 10% of the amount is remaining

let total amount=x

So,

10%x=120

$\begin{array}{c}\frac{10}{100}\times x=120\\ x=1200\end{array}$

The amount Alka sent=90%x

=$\frac{90}{100}\times 1200=1080$