Question

Aman purchased $12$ pens for $Rs.156$ and Piyush buy $9$ pens for $Rs.108$. Can you say who got the pens cheaper?

Answer 1

For Aman
$\because$ Cost of $12$ pens $=Rs.156$
$\therefore$ Cost of $1$ pens $=Rs.\frac{156}{12}=Rs.13$
For piyush
$\therefore$ Cost of $9$ pens $=Rs.108$

$\therefore$ Cost of $1$ pens $=Rs.\frac{108}{9}=Rs.12$
So, Piyush got pens cheaper.