9. The weight of 80 books is 10 kg.
a) Find the weight of 72 books.
b) How many books will weigh 6kg?
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13
Answer:
9.a) 9 kg
9.b) 48 books
solutions,
a) 80 books weight is 10 kg
72 books weight is , (10/80)*72
= 720/80 kg
= 9 kg
b) 10 kg weight for 80 books
6 kg weight for , (80/10)*6
= (8*6) = 48
48 books will weigh 6kg
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35
Answer:
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