Question

the weight of 56 books is 8 kg what is the weight of 152 sat books how many such books will weigh 5 kg​

Answer 1

Answer:

8÷56=0.14285714 (weight per book)

0.14285714×152=21.7142853 (weight of 152 book)

0.14285714×35=4.9999999 or 5kg (35 books wieghs 5kg

Answer 2

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).