Question

The price of a long note book is $Rs.18$. A shop keeper sells $410$ note books in a month and receives $Rs.1,033.20$ as commission. Find the rate of commission

Answer 1

Price of one note book is $Rs.18$.
$\Rightarrow$ Price of $410\times 18=Rs.7,380$.
Now the commission received for this amount is $Rs.1,033.20$. Hence for $Rs.100$, the commission is
$\frac{1033.20}{7380}\times 100=14$.
Therefore, the rate of commission is $14$%.