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The cost price of 15 pens is equal to the selling price of 20 pens. The loss or profit percentage is:
1. 20% profit
2. 20% loss
3. 25% profit
4. 25% loss

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Correct Answer - Option 4 : 25% loss

Given:

The cost price of 15 pens is equal to the selling price of 20 pens.

Concept Used:

Profit = [(selling price – cost Price)/cost price} × 100]%

Calculation:

Cost price(C.P.) of 15 pen = Selling price(S.P.) of 20 pens

⇒ 15 × C.P = 20 × S.P

⇒ C.P/S.P = 20/15

⇒ C.P/S.P = 4/3

Let, C.P be 4x and S.P be 3x

Profit = {(3x – 4x)/4x} × 100%

⇒ -100/4

⇒ -25%

Profit is ( -25)% that means loss is 25%

Loss is 25%

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