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Answer : 2. "Rs. 37.50"
The price of the book is marked 20% above the C.P. If the market price of the book is Rs. 180, then what is the cost of the paper used in a single copy of the books?
Q:
The price of the book is marked 20% above the C.P. If the market price of the book is Rs. 180, then what is the cost of the paper used in a single copy of the books?
- 1Rs. 36false
- 2Rs. 37.50true
- 3Rs. 42false
- 4Rs. 44.25false
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Answer : 2. "Rs. 37.50"
Explanation :
Clearly, marked price of the book = 120% of C.P
Also, cost of paper = 25% of C.P.
Let the cost of paper for a single book be Rs. n.
Then, 120 : 25 = 180 : n ⇒ n = Rs. 
= Rs. 37.50