Class 6 Love and 6 Goodness had the same number of pupils. The ratio of the number of boys in 6 Love to the number of boys in 6 Goodness was 1 : 5. The ratio of the number of girls in 6 Love to the number of girls in 6 Goodness was 3 : 1.
- What is the ratio of the number of girls to the number of boys in Class 6 Love?
- If there were 6 fewer girls than boys in Class 6 Goodness, how many pupils were there each class?
Class 6 Love |
Class 6 Goodness |
1x7 = 7 u |
1x7 = 7 u |
Boys |
Girls |
Boys |
Girls |
1 |
3x2 |
5 |
1x2 |
1 u |
6 u |
5 u |
2 u |
(a)
Class 6 Love
Girls : Boys
1 : 6
(b)
Number of fewer girls than boys in Class 6 Goodness
= 5 u - 2 u
= 3 u
3 u = 6
1 u = 6 ÷ 3 = 2
Number of pupils in each class
= 7 u
= 7 x 2
= 14
Answer(s): (a) 1 : 6; (b) 14