The weight of 48 books is 8 kg. What is the weight of 150 such books? How many books weigh 5 kg?
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Step-by-step explanation:
Explanation:
If a set of 56 books weighs 8000 grams, you can get average weight of a book, which is
8000/56=142.86grams.
Now you can compute weights of 152 books
=
152⋅142.86=21715
grams or approximately 21.7 kg.
If you want to buy 5 kg book, you need to get
5000/142.85=35
books. In other words, 35 books weigh 5 kg (or 5000 grams).
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