Question

If 25% DISCOUNT On a book is Rs 18 the price of the book is

Answer 1

72 ruppees is the cost of book

Answer 2

Here is your answer

$\frac{25}{100} x = 18 \\ x = \frac{18 \times 100}{25} \\ x = 72$
Hence MP of book is Rs 72

Hope it helps you