The ratio number of 16 girls to 12 boys is either 16:12 or 16 to 12.
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∙ 2015-11-12 21:54:44total number of students are 25 so givin boys number is 12 that way ratio of girls 13/25
5:4
Total students = Girls (12) plus Boys (18) equal 30 ie Girls (12) divided by total Students (30) = .40 multiply by 100 to get percentages =40 %
12 boys, 15 girls The composite numbers bit is irrelevant. b+g=27 g-b=3 add the equations b+g+g-b=27+3 2g=30 g=15
9 to 12 is the ratio. BUT, if you simplify it (divide them both by the same number which makes both of them come out to a whole number) it's 3 to 4
There are 12 boys.
18 boys and 12 girls
total number of students are 25 so givin boys number is 12 that way ratio of girls 13/25
12:4
The ratio is 9:12 (girls:boys)Simplified the ratio is 3:4 When there are 24 girls, there will be 32 boys. (3:4 = 24:32)
The answer is 8/12.
7:6 (girls to boys)
In a class of 30, if there are 12 boys then there must be 18 girls. This would make the ratio: 18:12 or 3:2 (girls:boys)
2 boys for every 3 girls 8 boys / 2 boys = 4 times the original ratio 4 times original ratio x 3 girls = 12 girls
5:4
3 to 2
number of boys = ratio of boys x total strength / total ratio = 5 x 27/9 = 5 x 3 = 15 number of girls = ratio of girls x total strength / total ratio = 4 x 27/9 = 4 x 3 = 12 verification: 15 + 12 = 27