salahali451 salahali451

23-11-2014
Mathematics

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divide 72 rolls into 2 groups so the ratio is 3 to 5

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matthewhamill matthewhamill

23-11-2014

If the ratio is 3:5 then there are 8 parts (3+5=8)

To find 1 part, divide 72 by 8 to give 9

Then multiply 9 by each of the numbers in the ratio:
3*9=37
5*9=45

So the rolls will be split into one group of 27 and one group of 45

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