Class 4 Gentleness and 4 Kindness had the same number of students. The ratio of the number of boys in 4 Gentleness to the number of boys in 4 Kindness was 11 : 14. The ratio of the number of girls in 4 Gentleness to the number of girls in 4 Kindness was 2 : 1.
- What is the ratio of the number of girls to the number of boys in Class 4 Gentleness?
- If there were 33 fewer girls than boys in Class 4 Kindness, how many students were there each class?
Class 4 Gentleness |
Class 4 Kindness |
1x17 = 17 u |
1x17 = 17 u |
Boys |
Girls |
Boys |
Girls |
11 |
2x3 |
14 |
1x3 |
11 u |
6 u |
14 u |
3 u |
(a)
Class 4 Gentleness
Girls : Boys
11 : 6
(b)
Number of fewer girls than boys in Class 4 Kindness
= 14 u - 3 u
= 11 u
11 u = 33
1 u = 33 ÷ 11 = 3
Number of students in each class
= 17 u
= 17 x 3
= 51
Answer(s): (a) 11 : 6; (b) 51