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25-09-2016
Mathematics

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If 30 marks Is 40% what is full marks?

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Аноним Аноним

25-09-2016

40% as a decimal = 0.4
x = full marks
30 = 40% of x
0.4x = 30 ---> Divide both sides by 0.4 to get x
x = 75
Full marks: 75

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