What is the value of the book ? The price of a pen and a book together is 95 rupees. How much is the book ?

What is the value of the book ? The price of a pen and a book together is 95 rupees. How much is the book ?
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Answer :

Hold on, the pen is worth Rs. So the price of the book is (95-a) rupees. Conditionally , A + 15 + (95-A) - 14 = 2 (95-A) or , A + 15 + 95 - A - 14 = 190 - 2 A or , 96 - 190 + 2 A = 0 or , 94 - 2 A = 0 or , 2 a = 94 or , a = 94/2, so a = 48, that is, the price of the pen is 48 rupees. Therefore the price of the book = 95 - A = 95 - 46 [putting the value of A] = 46 rupees. 48 rupees.
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