72books are packed in 4 cartoons of the same size then how many cartoons are required for 360 books?
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72 books need 4 cartons
1 book needs (4/72) cartons
360 books need (4/72)*360 cartons
i.e.{ (4 X 360 )÷ 72}
= 20 cartons
1 book needs (4/72) cartons
360 books need (4/72)*360 cartons
i.e.{ (4 X 360 )÷ 72}
= 20 cartons
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