5:The weight of 72 books is 9 kg. What is the weight of 30 such books? in unitary method
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2 thoughts on “<br />5:The weight of 72 books is 9 kg. What is the weight of 30 such books? in unitary method<br />​”

1. 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

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2. Answer:

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

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