Math, asked by kundankumar3461, 10 months ago

the weight of 72 books is 9 kg. what is the weight of 20 such books?​

Answers

Answered by AwesomeSoul47
15

Answer:

heu dear ,

weight of 72 books = 9 kg

weight of 8 books = 1 kg

weight of 20 books = 2. 5 kg

because 2*8+ 8/2 = 2.5

Answered by saieshwarch
2

Answer:

1By Cross Multiplication

72books - 9kg

20books-?

=20×9/72

=5/2

=2.5kg

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