Question

1. If a pen is sold for 16/- the percentage of loss is equal to its cost price. Find out the
cost price of the pen.
80/-
b) 25/-
c) 40/-
d) 50/-​

Answer 1

Answer:

80/-

Loss percentage =

$\frac{cost \: price \: - \: selling \: price}{cost \: price} \times 100$

here selling price is 16 and

loss percentage = cost price = x(say)

so we have,

x² = (x– 16) × 100

on solving we get

x = 80

So cost price is 80/-