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Profit, Loss & Discount · Question 42 of 72

Question 42

MediumOriginal question

Normally a bookseller sells at the marked price and earns 30% profit. During a book fair he gives a 10% discount. What is his profit percentage at the fair?

Options for question 42

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. Take CP = ₹100, so MP = ₹130.

  2. Fair price = 90% of ₹130 = ₹117.

  3. Profit = 17%.

Worth noting

30%−10%=20%30\% - 10\% = 20\% is the trap. The discount is 10% of ₹130, which is ₹13, not ₹10.

Concept
Profit % when a discount is added
Typical time
50 s
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The rule this testsMarked price and discount
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