3/4 of the class are girls; 4/5 of those girls have brown hair. How many are in the class? 3/12/2014 | Kacie from Naperville, IL | 1 Answer | 0 Votes Mark favorite Subscribe Comment
3/5 of the class are girls with brown hair. Assuming that's what you're asking. The question is a little unclear. 3/12/2014 | Travis S. Comment Comments Sorry, I forgot to show work. Basically if 3/4 of the class are girls, and 4/5 of those girls have brown hair, the way to find the number of the class that are girls with brown hair is to multiply girls by girls with brown hair. 3/4 x 4/5 = 12/20 = 3/5 3/12/2014 | Travis S. You should have a number for one of the category, to find out total number. 3/12/2014 | Parviz F. But Kacie didn't write a number anywhere. Just that 3/4 of the class is female and that 4/5 of those girls have brown hair. so with the info given, 3/5 of the class are girls with brown hair. If they want a number, then yes, we need more information. 3/12/2014 | Travis S. Comment
Sorry, I forgot to show work. Basically if 3/4 of the class are girls, and 4/5 of those girls have brown hair, the way to find the number of the class that are girls with brown hair is to multiply girls by girls with brown hair. 3/4 x 4/5 = 12/20 = 3/5 3/12/2014 | Travis S.
But Kacie didn't write a number anywhere. Just that 3/4 of the class is female and that 4/5 of those girls have brown hair. so with the info given, 3/5 of the class are girls with brown hair. If they want a number, then yes, we need more information. 3/12/2014 | Travis S.
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