Mr. James’ class has a ratio of 2 boys to 3 girls. Ms. Singh’s class has a ratio of 1 girl to 2 boys. Both classes have 30 students. How many boys and girls are in each class?
Mr.James' class:
2 / [2+3] x 30 = 12 boys
3 / [2+3] x 30 = 18 girls
Mr. Singh's class:
1 /[1+2] x 30 = 10 girls
2/[1+2] x 30 = 20 boys.
