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Pie Charts

The following pie-chart shows the percentage distribution of the expenditure incurred in publishing a book. Study the pie-chart and the answer the questions based on it.

Various Expenditures (in percentage) Incurred in Publishing a Book

Q1: The price of the book is marked 20% above the C.P. 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?

A Rs. 36

B Rs. 37.50

C Rs. 42

D Rs. 44.25

ANS:B - Rs. 37.50

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. ( 25 x 180 ) = Rs. 37.50 .
120



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