On selling 100 pencils a man gains the selling price of 20 pencils. His gain per cent is
Let × be the CP of pencil
SP of 100 pencils = 100x
Gain of 20 Pencils = 20x
CP = SP - Gain
= 100 × – 20x
= 80x
= 25%
8
On selling 100 pencils a man gains the selling price of 20 pencils. His gain per cent is
Let × be the CP of pencil
SP of 100 pencils = 100x
Gain of 20 Pencils = 20x
CP = SP - Gain
= 100 × – 20x
= 80x
= 25%