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Mr. Ellington has a total of 32 students in his class , The ratio of girls to boys is 3:5, how many girls are in Mr . Ellington's class ?

2 Answers

1 vote

Answer:

12

Explanation:

If the ratio of girls to boys is 3:5, that means that for every 8 total students, 3 would be girls and 5 would be boys. Therefore 3/8 of the students are girls and 5/8 are boys. If 3/8 are girls, then:


(3)/(8) of 32

=
(3)/(8) * 32


=(3 * 32)/(8) \\= (96)/(8) \\= 12

There are 12 girls.

User Marlene
by
3.8k points
4 votes

Add the ratio: 3 + 5 = 8

Divide total students by that:

32/8 = 4

The ratio for girls is 3, multiply the 4 by 3:

4 x 3 = 12

There are 12 girls

User Jan Kuiken
by
4.3k points