Question

an online book store offers an additional discount of 20% on an already discounted book at 25%.represent the net price of the book in terms of fraction and decimals of its MRP.

Answer 1

Suppose x be the MRP of the book.
Price of the discounted book at 25% = $x-x\times \frac{25}{100}=\frac{3x}{4}$
Since the book store offers an additional discount of 20% on a discounted book.
So net price of the book = $\frac{3x}{4}-\frac{3x}{4}\times \frac{20}{100}=\frac{3x}{4}-\frac{3x}{20}=\frac{12x}{20}=\frac{3x}{5}$
Therefore net price of the book is $\frac{3}{5}$ of the MRP of the book or 0.6 of the MRP of the book.