Class 5 Faithfulness and 5 Kindness had the same number of pupils. The ratio of the number of boys in 5 Faithfulness to the number of boys in 5 Kindness was 11 : 13. The ratio of the number of girls in 5 Faithfulness to the number of girls in 5 Kindness was 2 : 1.
- What is the ratio of the number of girls to the number of boys in Class 5 Faithfulness?
- If there were 44 fewer girls than boys in Class 5 Kindness, how many pupils were there each class?
Class 5 Faithfulness |
Class 5 Kindness |
1x15 = 15 u |
1x15 = 15 u |
Boys |
Girls |
Boys |
Girls |
11 |
2x2 |
13 |
1x2 |
11 u |
4 u |
13 u |
2 u |
(a)
Class 5 Faithfulness
Girls : Boys
11 : 4
(b)
Number of fewer girls than boys in Class 5 Kindness
= 13 u - 2 u
= 11 u
11 u = 44
1 u = 44 ÷ 11 = 4
Number of pupils in each class
= 15 u
= 15 x 4
= 60
Answer(s): (a) 11 : 4; (b) 60