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Prices / Charges Related to Buying and Selling

Laxmi bought ...

Question

Laxmi bought 7 books for a total of Rs 56. How much would she pay for just 3 books?

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Solution

Cost of 7 books = Rs 56
So, cost of 1 books $= \frac{56}{7} = R s 8$
Now, Cost of 3 books $= R s 8 \times 3 = R s 24.$

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