Question

Weight of 72 books is 9 kg what is the weight of of 80 such books what is the how many such Books with 6 kg

Answer 1

weight of 72 books = 9kg

weight of 1 book = 9/72

= 0.125 kg

weight of 80 books = 0.125*80

=  10 kg

now to find out number of books in 6 kg

1 book = 0.125

x book = 6 kg

we cross multiply

1 x 6 = 0.125 * x

x = 6/0.125

= 48 books

Answer 2

Answer:

I hope it is helpful.............................