Question

The weight of 72 books is 9 kg.

(a) find the Weight of 80 such books.
(b) how many books will weigh 6 kg?​

Answer 1

Step-by-step explanation:

72 books=9kg

1 book = 9/72 kg =1/8 kg

80 books = 80*1/8=10 kg

1book = 1/8 kg

1kg =8 book

6kg=8*6=48 books

Answer 2

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Given,

The weight of 72 books is 9 kg.

The weight of 1 book = 9 / 72

= 1 / 8

= 0.125 kg

= 125 grams

a) Solution :-

The weight of 80 books = 80 × 125

= 10000 grams

= 10 kg

b) Solution :-

No. of books that weight 6 kg = 6 / 0.125

= 48 books

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