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5:The weight of 72 books is 9 kg. What is the weight of 30 such books? in unitary method

Question

5:The weight of 72 books is 9 kg. What is the weight of 30 such books? in unitary method

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Mathematics
3 months
2021-07-17T12:22:10+00:00
2021-07-17T12:22:10+00:00 2 Answers
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## Answers ( )

Answer:3 whole 3/4 kg

Step-by-step explanation:Weight of 72 book = 9kg

Weight of 1 book = (9/72) kg

Weight of 30 such books = (9/72 × 30) kg

= 15/4 kg

= 3 3/4kg

Answer:weight of one book is72/9000 =125gm*30=3.750