Question

If the cost of $50$ pencils is Rs. $20$, then the pencils can be bought for Rs. $32$ is ______

Answer 1

Given

Cost of $50$ pencils $=20$

$\Rightarrow$ cost of $1$ pencils $=\frac{20}{50}$

$\Rightarrow$ cost of $1$ pencils $=\frac{2}{5}$

Cost of $x$ pencils $=\frac{2x}{5}$

Given $\frac{2x}{5}=32$

$\Rightarrow x=80$