At a park, each adult ticket cost $36 and each child ticket cost $6. On Tuesday, the number of adult tickets sold was 98 less than the number of child tickets. On Wednesday, the number of adult tickets sold decreased by 25% while the number of child tickets sold increased by 50%. If a total of 2172 tickets were sold on Wednesday, how much money was collected on Tuesday?

	Adult tickets	Child tickets	Total tickets
Before	1 u	1 u + 98	2 u + 98
Change	- 0.25 u	+ 0.5 u + 49
After	0.75 u	1.5 u + 147	2.25 u + 147

25% x 1 u = ²⁵₁₀₀ x 1 u = 0.25 u 
50% x 1 u = ⁵⁰₁₀₀ x 1 u = 0.5 u
50% x 98 = ⁵⁰₁₀₀ x 98 = 49

Number of tickets sold on Wednesday
= 0.75 u + 1.5 u + 147
= 2.25 u + 147

2.25 u + 147 = 2172
2.25 u = 2172 - 147
2.25 u = 2025

1 u = 2025 ÷ 2.25 = 900

Amount collected from adult tickets on Tuesday
= 1 u x 36
= 900 x 36
= $32400

Amount collected from child tickets on Tuesday
= 6(1 u + 98)
= 6(900 + 98)
= 6 x 998
= $5988

Total amount collected on Tuesday
= 32400 + 5988
= $38388

Answer(s):$38388