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Fraction puzzle

in a school three fifths are boys and there are 240 girls, how many boys are there i know the answer is 360 boys, how do you arrive at this number thanks
Question asked by: yazz11

Asked on: 30 Jan 2010

If three fifths are boys and there are 240 girls, then this means that two fifths of the pupils are girls.

Therefore 2/5 x pupils = 240

So the question is,

3/5 x pupils = ???

Well, (240 / 2) x 3 is straightforwardly the answer, to give 360. So the answer is 360.

By: stephy
Replied at: 31 Jan 2010
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puzzle  fraction  

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