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If selling price is doubled, the profit triples. Find the profit percent:

Correct answer: B. 100

  • A. 66 2/3
  • B. 100
  • C. 105 1/3
  • D. 120Quiz Mode Feature

Explanation

Let the original selling price be Rs. S and cost price be Rs. C. After doubling the selling price, S's profit becomes 2S - C, and this equals three times the original profit, 3(S - C); solving gives S = 2C. Thus the original profit is S - C = C, so profit percent = (C/C) x 100 = 100%. The likely mistake is 66 2/3%, which measures profit against the doubled selling price instead of the cost price.

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About Profit and Loss

Profit and loss compare the cost price and selling price of an item, using profit or loss percentages based on the cost price unless stated otherwise. Questions include marked price, discount, successive discounts, commission, and finding an unknown price, with care needed to distinguish discount from loss.

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