On selling 100 pencils a man gains the selling price of 20 pencils. Hi

1.	On selling 100 pencils a man gains the selling price of 20 pencils. His gain percent is20%25%22 ½ %16 2/3 %
Answer» (2) 25% let us consider the CP of a pencil be x SP of 100 pencils = 100x Gain of 20 pencils = 20x ∴ we calculate CP = SP – Gain = 100x – 20x = 80x ∴ Gain% = (Gain × 100) /CP = ((20x) × 100) / 80x = 25%

On selling 100 pencils a man gains the selling price of 20 pencils. His gain percent is20%25%22 ½ %16 2/3 %

Answer»

(2) 25%

let us consider the CP of a pencil be x

SP of 100 pencils = 100x

Gain of 20 pencils = 20x

∴ we calculate CP = SP – Gain

= 100x – 20x

= 80x

∴ Gain% = (Gain × 100) /CP

= ((20x) × 100) / 80x

= 25%