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26-10-2018
Mathematics

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a dozen of books are Rs 680 at a profit of Rs 140. what is the cost of one book?

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26-10-2018

Answer:

= Rs 68.3

Step-by-step explanation:

The cost of one dozen = 680 + 140 = 820

To find the cost of one, divide 820 by 12. (Dozen = 12)

820/12 = Rs 68.3

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