Class 6 Patience and 6 Peace had the same number of children. The ratio of the number of girls in 6 Patience to the number of girls in 6 Peace was 5 : 9. The ratio of the number of boys in 6 Patience to the number of boys in 6 Peace was 2 : 1.
- What is the ratio of the number of boys to the number of girls in Class 6 Patience?
- If there were 10 fewer boys than girls in Class 6 Peace, how many children were there each class?
Class 6 Patience |
Class 6 Peace |
1x13 = 13 u |
1x13 = 13 u |
Girls |
Boys |
Girls |
Boys |
5 |
2x4 |
9 |
1x4 |
5 u |
8 u |
9 u |
4 u |
(a)
Class 6 Patience
Boys : Girls
5 : 8
(b)
Number of fewer boys than girls in Class 6 Peace
= 9 u - 4 u
= 5 u
5 u = 10
1 u = 10 ÷ 5 = 2
Number of children in each class
= 13 u
= 13 x 2
= 26
Answer(s): (a) 5 : 8; (b) 26