Question

on selling 100 pencils a man gains the selling price of 20 pencils.his gain% is

Answer 1

Let the S.P. of one pencil = ₹1

S.P of 20 pencils= ₹ 20

Gain = S.P of 20 pencils = ₹20(given)

S.P of 100 pencils = ₹ 100

C.P of 100 pencils = S.P - profit

= 100 - 20= 80

C.P of 100 pencils = ₹ 80

Gain % = (gain / C.P)×100

Gain % =( 20/80)×100

Gain % = 2000/80= 200/8= 50/2= 25%

Hence, the gain% = 25%

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Hope this will help you...

Answer 2

Answer:

Let × be the CP of pencil

SP of 100 pencils = 100x

Gain of 20 Pencils = 20x

CP = SP - Gain

= 100 × – 20x

= 80x

= Gain% = ( Gain/cp × 100 )%

= (20x/80x × 100)

= 25%