the weight of 56 books is 8 kg . what is the weight of 152 such books? How many such books weigh 5 kg?
Answers
Answered by
2
Step-by-step explanation:
Weight of 56 books = 8kg
So weight of 1 book = 8/56
= 1/8 kg
So weight of 152 books = 1/8 ×152
= 19 kg
Books weight 5kg = 8×5
= 40 books
Answered by
1
If a set of 56 books weighs 8000 grams, you can get average weight of a book, which is
8000
56
=
142.86
grams.
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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