Question

A man buys a book for Rs. 80 and sells it for Rs. 100. His gain % is a. 20% b. 25% c. 120% d. 125%

Answer 1

Cost price of book =Rs.80

Selling price of book =Rs.100

Since (SP)>(CP), so there is a gain

Gain =(SP)−(CP)

=Rs.(100−80)

=Rs.20

Gain %={(gain/CP)×100}

={20/80)×100}

={20/20)×25}

=25%

Answer 2

Step-by-step explanation:

Given,

Cost price of book = 80 rupees

Selling price of book = 100 rupees

Here selling price is greater than cost price

so , there is a gain. .

Gain = 100-80=20 .

gain percentage = gain /C.P *100 percentage

= 20/80*100 percentage

= 25 percentage ..ans....

I hope my answer will help you ...