Question
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:Solution
ATQ, Let the cost price be 100 Then, selling price = 100 + (100 × 12/100) = 112 ⇒ Printed price = 100 × 90/100 = 90 ⇒ CP : MP = 90 : 112 CP : MP = 45 : 56 ∴ The ratio of the cost price to printed price of the book is 45 : 56.
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