PSLE On Wednesday, the number of children to men to women visiting a tourist attraction was 5 : 6 : 2. On Thursday, the number of children visiting the tourist attraction remained the same. However, the number of men decreased by 50% and the number of women increased by 50%.
- What was the ratio of the number of adults to children visiting the tourist attraction on Thursday?
- On Wednesday, 344 men and women visited the tourist attraction. What was the total number of adult visitors at the tourist attraction on Thursday?
|
Children |
Men |
Women |
Before |
5 u |
6 u |
2 u |
Change |
|
- 3 u |
+ 1 u |
After |
5 u |
3 u |
3 u |
(a)
Increase in the number of men
= 50% x 6 u
=
50100 x 6 u
= 3 u
Decrease in the number of women
= 50% x 2 u
=
50100 x 2 u
= 1 u
Number of men on Thursday
= 6 u - 3 u
= 3 u
Number of women on Thursday
= 2 u + 1 u
= 3 u
Number of adults on Thursday
= 3 u + 3 u
= 6 u
On Thursday
Adults : Children
6 : 5
(b)
Number of men and women on Wednesday
= 6 u + 2 u
= 8 u
8 u = 344
1 u = 344 ÷ 8 = 43
Total number of adult visitors on Thursday
= 6 u
= 6 x 43
= 258
Answer(s): (a) 6 : 5; (b) 258