PSLE
On Monday, the number of children to men to women visiting a park was 3 : 8 : 8. On Tuesday, the number of children visiting the park remained the same. However, the number of men increased by 25% and the number of women decreased by 25%.

1. What was the ratio of the number of children to men to women visiting the park on Tuesday?
2. On Monday, 752 men and women visited the park. What was the total number of visitors at the park on Tuesday?

	Children	Men	Women
Before	3 u	8 u	8 u
Change		+ 2 u	- 2 u
After	3 u	10 u	6 u

(a)
Increase in the number of men
= 25% x 8 u
= ²⁵₁₀₀ x 8 u
= 2 u

Decrease in the number of women
= 25% x 8 u
= ²⁵₁₀₀ x 8 u
= 2 u

Number of men on Tuesday
= 8 u + 2 u
= 10 u

Number of women on Tuesday
= 8 u - 2 u
= 6 u

On Tuesday
Children : Men : Women
3 : 10 : 6

(b)
Number of men and women on Monday
= 8 u + 8 u
= 16 u

16 u = 752

1 u = 752 ÷ 16 = 47

Total number of visitors on Tuesday
= 3 u + 10 u + 6 u
= 19 u
= 19 x 47
= 893

Answer(s): (a) 3 : 10 : 6; (b) 893