Q. 8.     The weight of 72 books is 9\; kg. What is the weight of 40 such books?

Answers (1)

Given,

The weight of 72 books = 9 kg

So, The weight of 1 book :

=\frac{9}{72}=\frac{1}{8}kg

And hence,

The weight of 40 such books:

=40\times\frac{1}{8}=5kg

Hence, the weight of 40 books will be 5 kg.

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