if 72 books weights 9 kg what is weight of 80 such books and how many books will be in 6 kg
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Step-by-step explanation:first case
Weight of 1 book=9000g/72
=125g
Therefore weight of 80 books=125g*80=10000g=10kg
Case 2
No. Of books in 6kg=6000g/125g
=48books
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