Question

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?

1 Rs. 36
2 Rs. 37.50
3 Rs. 42
4 Rs. 44.25

Answer 1

The cost of the paper used in a single copy of the book is Rs. 30.

Step-by-step explanation:

To find the cost of the paper used in a single copy of the book, we need to first determine the cost price (C.P.) of the book. Since the market price of the book is Rs. 180 and it is marked 20% above the C.P., we can set up the equation:

Market price = C.P. + 20% of C.P.

180 = C.P. + 0.2C.P.

180 = 1.2C.P.

C.P. = 180/1.2 = Rs. 150

Now, to find the cost of the paper used in a single copy of the book, we subtract the cost of the book from the market price:

Cost of paper = Market price - C.P.

Cost of paper = 180 - 150 = Rs. 30

Therefore, the cost of the paper used in a single copy of the book is Rs. 30.