Question

If the selling price of 10 pens is same as the cost price of 12 pens then gain percent

Answer 1

Profit is 20 %
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Answer 2

Answer:

let us consider the CP as x SP of 1 pen = x/10

CP of 1 pen = x/12

Since SP is more than CP its Gain Gain = SP – CP = x/10 – x/12 = x/60

∴ Gain% = (Gain × 100) /CP = ((x/60) × 100) / (x/12) = 20%