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SSC CHSL 2022 · PYQ · Profit & Loss · medium

A shopkeeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of the cost price to the printed price is:

  1. A.55:38
  2. B.56:45
  3. C.38:55
  4. D.45:56✓ Correct

Explanation

Let printed price = P. Selling price = 0.9P. Cost price = 0.9P/1.12 = 0.9P × 100/112 = 90P/112 = 45P/56. So CP:P = 45:56.
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