Multiple choice

By selling 50 metres of cloth, a person gains the cost price of 20 metres of cloth. What is his gain percent?

  1. 40

  2. 25

  3. 20

  4. 10
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A Correct answer
Explanation

Gain = Selling Price - Cost Price. Given Gain = CP of 20m. SP of 50m = CP of 50m + CP of 20m = CP of 70m. Gain % = (Gain/CP)*100 = (20/50)*100 = 40%.

AI explanation

Let the cost price of one metre of cloth be one rupee, making the total cost price of 50 metres equal to Rs. 50. The gain is given as the cost price of 20 metres, which is Rs. 20. Using the gain percent formula, (Gain / Cost Price) x 100, we get (20 / 50) x 100, which equals 40. The result is 40.

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