The weight of 72 books is 9 kg.
(a) Find the weight of 80 such books.
How many books will weigh 6 kg?
(b)
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Answer:
Weight of 72 books=9kg
Weight of 1 book=9/72=1/8kg
Therefore, weight of 80 books=1/8×80=10kg
Thus, the weight of 80 such books is 10kg.
no of books that weight 6kg =6/0.125.
or 6÷1/8kg
which is = 48
48 book will weight 6kg
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