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72 girls and 18 boys for a total of 90.
they may be girls and boys
Since there are 2 boys and 3 girls there are 3 girls in a class of 5. For a class of 30 there is thus 3/5 times 30 = 18 girls John
Boys would have worked on farms and in chimneys but girls worked in sewing factories.
1000:4000
1000 :4000
Use a varialble like "x" for boys, in that case, the number of girls are "4x". Therefore, x + 4x = 200. Solve for x.
Divide the number of girls by the total number of children (boys + girls).
Both.
2 boys for every 3 girls 8 boys / 2 boys = 4 times the original ratio 4 times original ratio x 3 girls = 12 girls
All children (girls/boys) learn at school
If there are four times as many boys as girls, then the ratio of boys to girls is 4:1. To find the number of girls, divide the total number of children by the sum of the parts of the ratio, which is 4+1. So, there would be 30/5 = 6 girls in the group.