the wieght of 72 books is 9 kgs . whats the wieght of 40 such books?
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Answer:
the weight of 40 books is 5kg. The answer is 5 kg!!
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Step-by-step explanation:
the wieght of 72 books is 9 kgs
the wieght of 1 book = 9 /72 = 1/8kgs
the wieght of 40 books = 1/8 * 40 = 5kgs
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