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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?

Answer 1

#28#

#"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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Answer 2

Levi Adams

If there are 12 girls in class, and the ratio of girls to boys is 3:4, then there are (4 \times 12 = 48) boys in class. Therefore, the total number of students is (12 + 48 = 60).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.