The weight of 80 identical books is 400 kg. What is the weight of one such book? Options: A . &nbsp 10 kg B . &nbsp 5 kg C . &nbsp 15 kg D . &nbsp 20 kg

The weight of 80 identical books is 400 kg. What is the weight of one such boo

Question

The weight of 80 identical books is 400 kg. What is the weight of one such book?

Options:

A . 10 kg

B . 5 kg

C . 15 kg

D . 20 kg

Answer: Option B
:
B

Weight of 80 identical books = 400 kg
Weight of 1 such book
$= \frac{400}{80} = \frac{10 \times 40}{10 \times 8} = \frac{40}{8} = 5 k g$

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