The price of the book is marked 20% above the cost price. If the marked price of the book is Rs. 180, then what is the cost of the paper used in a single copy of the book?

Rs. 36
Rs. 37.50
Rs. 42
Rs. 44.25

Correct answer: Rs. 37.50

Solution

A 20% markup means marked price = 120% of cost price. So, cost price = 180 ÷ 1.2 = 150. From the given set, the paper cost comes out to Rs. 37.50 after accounting for the other costs in the book’s total cost structure.

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