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Tulane has a ratio of 3 girls to 4 boys in class. If there are 12 girls in class how many total students are there?

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Mar 7, 2018

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#28#

Explanation:

#"G" : "B" = 3 : 4#

From above ratio of girls and boys we can say that girls (#"G"#) are #3/7# of total (#"T"#) and boys are #4/7# of total.

#"G" = 3/7 × "T"#

#12 = 3/7 × "T"#

#"T" = (12 × 7)/(3) = 28#

∴ There are total #28# students in the class.

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