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A manufacturer sells a pair of glasses to a wholesale dealer at a profit of 18%. The wholesaler sells the same to retailer at a profit of 20%. The retailer in turn sells them to a customer for Rs. 30.09, there by earning a profit of 25%. The cost price for the manufacturer is:________?

Correct answer: C. Rs. 17

  • A. Rs. 15
  • B. Rs. 16
  • C. Rs. 17
  • D. Rs. 18Language Resources

Explanation

Let the manufacturer's cost price be Rs. 100. After profits of 18%, 20% and 25%, the customer price becomes Rs. 100 x 1.18 x 1.20 x 1.25 = Rs. 177, so Rs. 30.09 / 1.77 = Rs. 17. The likely trap is Rs. 18, which can result from rounding or applying the profit percentages incorrectly.

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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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