Question

three years in 331.
On selling 100 pens, a man gains the selling price of 20 pens. Find the gain percent
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Answer 1

Answer:

20%

Step-by-step explanation:

CP = 100

SP=100+20 i.e. 120

P=SP-CP i.e. 120-100 = 20

P%=(P÷CP)×100

i.e. 20%