RATIO AND PORPORTION
The weight of 72 books is 9 kg
1. What is the weight of 160 such books?
2. How many books would weight 6 kg?
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Answer:
1 The weight of 72 book is 9 kg
The weight of 1 book is 72 ÷9 is = 8
So the weight of 160 kg is =160 ÷8=20
2 72 ÷ 9 ×6 is the answer
72÷9=8
8×6=48ans
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