Question

If the cost of a book worth ₹50 is increased by ₹25, then the percentage increase in its price is _____% .

• A. 50

Answer 1

The correct option is A 50
Original cost of the book = ₹50

Amount by which cost of the book is increased = ₹25
i.e., the amount of change = ₹25

We know,

a% of Initial value = Change

$\frac{a}{100}\times 50=25$

a = 50

Therefore, price of the book is increased by 50 percent.