The weight of 63 books is 9 kg. What is weight of 30 such books? Answer with steps
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1
weight of 63 books = 9 kg
weight of 1 book = 9/63 kg = 1/7 kg
weight of 30 books =
30×(1/7) = 30/7 kg
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let the weight of one book be x
the weight of 63 books is 9
=63/9=7books
=30*7=210kg
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