sammy130 sammy130

18-12-2016
Mathematics

contestada

40% of the girls are fair and the reminder is brown. Half of the girl are beautiful and half are moderate. If 10% of the girls are fair and beautiful, and 40 girls are brown and moderate, how many girls are fair and moderate?

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mathssydney mathssydney

18-12-2016

So-called two-way tables method.
60 girls.

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