Question

On selling pencil a man gains the selling price of 20 pencils.His gain %

Answer 1

Answer:

20 upon 100 ×100 = 20% ans

Answer 2

Answer:

25%

Step-by-step explanation:

let, SP of 1 pencil             = Rs. 1

SP of 20 pencils              = Rs. 20

profit = SP of 20 pencils = Rs. 20

SP of 100 pencils             = Rs. 100

CP of 100 pencils            = SP-P = 100-20 = Rs. 80

P% = (P / CP) × 100

     = (20 / 80) × 100

     = 25%