Question

5. The weight of 45 books is 9 kg.
(1) What is the weight of 80 books.​

Answer 1

Step-by-step explanation:

Weight of  1 book = 5kg

Weight of 80 books = 400kg

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Answer 2

Answer:

Weight of 45 books = 9 kg

Weight of 80 books = ?

9 kg = 9000 g

Weight of 1 book = 9000÷45

= 200 g

So, 200×80 = 16000 g

In kgs = 16000 g will be 16 kg

So weight of 80 books is 16 kg .