Question

the price of a book is increased by 12%,if its increased price is rs 145.60, find the original price?

Answer 1

let the original price be x.
After increment its price would be
$\frac{12x}{100} + x = \frac{3x}{25} + x \\ = \frac{3x + 25x}{25} \\ = \frac{27x}{25}$
It is given in the question that increased price is ₹ 145.60
$therefore \\ \frac{27x}{25} = 145.60 \\ x = \frac{145.6 \times 25}{27} = \frac{1456}{10} \times \frac{25}{27} \\ = 134.81$
= ₹ 134.81