Multiple choice

On allowing 31% discount on marked price of a shirt a shopkeeper gets 15% profit. What is the cost price of the shirt?

  1. Rs. 87

  2. Rs. 80

  3. Rs. 75

  4. Cannot be determined

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let marked price = M. After 31% discount, selling price = 0.69M. This gives 15% profit, so 0.69M = 1.15 × CP, or CP = 0.69M/1.15 = 0.6M. Without knowing M (the marked price), we cannot determine the exact cost price.

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