Class 4 Love and 4 Joy had the same number of students. The ratio of the number of boys in 4 Love to the number of boys in 4 Joy was 1 : 9. The ratio of the number of girls in 4 Love to the number of girls in 4 Joy was 5 : 1.
- What is the ratio of the number of girls to the number of boys in Class 4 Love?
- If there were 14 fewer girls than boys in Class 4 Joy, how many students were there each class?
Class 4 Love |
Class 4 Joy |
1x11 = 11 u |
1x11 = 11 u |
Boys |
Girls |
Boys |
Girls |
1 |
5x2 |
9 |
1x2 |
1 u |
10 u |
9 u |
2 u |
(a)
Class 4 Love
Girls : Boys
1 : 10
(b)
Number of fewer girls than boys in Class 4 Joy
= 9 u - 2 u
= 7 u
7 u = 14
1 u = 14 ÷ 7 = 2
Number of students in each class
= 11 u
= 11 x 2
= 22
Answer(s): (a) 1 : 10; (b) 22