Question

A shopkeeper sells a book for RS100,gaining RS20 .his gain present is?

Answer 1

Sp of the book=Rs 100
gain=g=Rs20
Cost price=cp
cp=sp-g
cp=100-20=80
gain %= gain/cp ×100

=(20×100)/80
=25%

Answer 2

Answer:

25 %

Step-by-step explanation:

GIVEN,

SP = 100

PROFIT = 20

FIND ,

CP AND GAINING PERCENT

SOLUTION,

CP = 100 - 20 = 80

GAINING PERCENT = 20 × 100 / 80

= 25 %

I hope its help you .