Question

. If the cost of 20 pencil equals to the selling price of 15 pencil then the gain is ?
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Answer 1

Answer:

Profit = Selling Price - Cost Price

Profit % = × 100

Calculation:

Let the Selling price of one pencil be x

The selling price of 15 pencils = 15x

So, 15x = Cost price of 20 pencils

Cost price of 1 pencil = 0.75x

Cost price of 15 pencils = 11.25x

Profit = 15x - 11.25x = 3.75x

Profit % = ×100 = = 33%

∴ The profit per cent is 33%