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At Tomi's middle school, 40% of the students are boys. Fifty percent of the boys chose blue as their favorite color, while 20% of the girl students chose blue as their favorite color. Of the students who chose blue as their favorite color, what fraction are boys? Express your answer as a common fraction.

 Feb 3, 2021
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The total amount of boys is 40%. And 50% of boys chose blue as their favourite colour. This means that 1/2 of the boys chose blue as their favourite colour which means 20% of boys chose blue as their favourite colour. 20% is 20/100 = 2/10 = 1/5.

 Feb 3, 2021

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