PSLEA caterer prepares seaweed chickens for some people attending the anniversary party. The ratio of the number of children to the number of adults attending is 1 : 2. Among the adults, the ratio of the number of women to the men is 1 : 1. A total of 35 seaweed chickens are prepared so that each child gets 3 seaweed chickens and each adult gets 1.
- What fraction of the people attending the party are women?
- How many children are attending the party?
|
Children |
Adults |
Total |
Comparison between the number of children and adults |
1
|
2
|
3
|
|
|
Women |
Men |
|
Comparison between the number of children and adults |
|
1
|
1
|
|
Number |
1 u |
1 u |
1 u |
3 u |
Value |
3 |
1 |
1 |
|
Total value |
3 u |
1 u |
1 u |
5 u |
(a)
Fraction of the people that are adults =
23 Fraction of the adults that are women =
12 Fraction of the people that are men
=
23 x
12 =
13 (b)
Total number of seaweed chickens
= (1 u x 3) + (2 u x 1)
= 3 u + 2 u
= 5 u
5 u = 35
1 u = 35 ÷ 5 = 7
Number of children
= 1 u
= 1 x 7
= 7
Answer(s): (a)
13; (b) 7