Class 2 Love and 2 Gentleness had the same number of children. The ratio of the number of boys in 2 Love to the number of boys in 2 Gentleness was 3 : 11. The ratio of the number of girls in 2 Love to the number of girls in 2 Gentleness was 5 : 1.
- What is the ratio of the number of girls to the number of boys in Class 2 Love?
- If there were 18 fewer girls than boys in Class 2 Gentleness, how many children were there each class?
Class 2 Love |
Class 2 Gentleness |
1x13 = 13 u |
1x13 = 13 u |
Boys |
Girls |
Boys |
Girls |
3 |
5x2 |
11 |
1x2 |
3 u |
10 u |
11 u |
2 u |
(a)
Class 2 Love
Girls : Boys
3 : 10
(b)
Number of fewer girls than boys in Class 2 Gentleness
= 11 u - 2 u
= 9 u
9 u = 18
1 u = 18 ÷ 9 = 2
Number of children in each class
= 13 u
= 13 x 2
= 26
Answer(s): (a) 3 : 10; (b) 26