Class 1 Gentleness and 1 Kindness had the same number of pupils. The ratio of the number of girls in 1 Gentleness to the number of girls in 1 Kindness was 1 : 15. The ratio of the number of boys in 1 Gentleness to the number of boys in 1 Kindness was 8 : 1.
- What is the ratio of the number of boys to the number of girls in Class 1 Gentleness?
- If there were 26 fewer boys than girls in Class 1 Kindness, how many pupils were there each class?
Class 1 Gentleness |
Class 1 Kindness |
1x17 = 17 u |
1x17 = 17 u |
Girls |
Boys |
Girls |
Boys |
1 |
8x2 |
15 |
1x2 |
1 u |
16 u |
15 u |
2 u |
(a)
Class 1 Gentleness
Boys : Girls
1 : 16
(b)
Number of fewer boys than girls in Class 1 Kindness
= 15 u - 2 u
= 13 u
13 u = 26
1 u = 26 ÷ 13 = 2
Number of pupils in each class
= 17 u
= 17 x 2
= 34
Answer(s): (a) 1 : 16; (b) 34