The weight of 56 books is 8 kg
1] What is the weight of 154 such books?
2]How many such books weigh 5 kg?
Answers
Answered by
4
56 = 8kg
154 = x kg
x = 154 × 8/56
x = 22kg
weight of 154 books = 22kg
56 books = 8 kg
x books = 5 kg
x = 56 × 5/ 8
x = 7×5
x = 35
weight of 35 books = 5kg
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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