Question

A bookseller marked a book 20% above cost price and allows 20% discount on it. Find his gain or loss per cent.​

Answer 1

Answer:

Let be cost price =Rs.100

Then mark price =Rs.120

∴ Selling price =90% of 120

=

100

120×90

=Rs.108

Profit = Selling price− Cost price

=Rs.(108−100)=Rs.8

Profit % =

100

8×100

=8%

Answer 2

Step-by-step explanation:

let the cost price= rs 100

then, mark price= rs 120

THEN,sp = 90% of 120

=100/120 × 90 = rs. 108

profit = sp-cp

=Rs (108-100)=8

profit% = 8 %