Question

72 books weigh 8 kg. What is the weight of 81 such books? how many such books will weigh 6 kg

Answer 1

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Answer 2

Step-by-step explanation:

Given 72 books weight is 8 kg.

Therefore weight of 1 book = 8/72 = 1/9 kg

So the weight of 81 such books = 81 X (1/9) kg = 9 kg.

Now 8 kg is the weight of 72 books,

Therefore 1 kg is the weight of 72/8 = 9 books.

So 6 kg is the weight of 6 X 9 = 54 books.

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