Answer-The cost of a book includes 10% printing cost, 20% paper cost and another 15% Ink cost. If other cos...

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We first convert the percentages to fractions.  Printing cost  10100  110  Paper cost  20100  15  Ink cost  15100  320  We sum this fractions to get   110  15  320  920  The remainder is   1 - 920   2020 - 920  1120  This is equal to Rs.110  1120  110  We need to get the total price which is 2020  2011  110  200  The total price of the book is   Rs 200

The cost of a book includes 10% printing cost, 20% paper cost and another 15% Ink cost. If other costs add-up to Rs. 110, what is the total cost of the book

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