At a bird park, each adult ticket cost $36 and each child ticket cost $11. On Tuesday, the number of adult tickets sold was 130 less than the number of child tickets. On Wednesday, the number of adult tickets sold decreased by 15% while the number of child tickets sold increased by 40%. If a total of 632 tickets were sold on Wednesday, how much money was collected on Tuesday?

	Adult tickets	Child tickets	Total tickets
Before	1 u	1 u + 130	2 u + 130
Change	- 0.15 u	+ 0.4 u + 52
After	0.85 u	1.4 u + 182	2.25 u + 182

15% x 1 u = ¹⁵₁₀₀ x 1 u = 0.15 u 
40% x 1 u = ⁴⁰₁₀₀ x 1 u = 0.4 u
40% x 130 = ⁴⁰₁₀₀ x 130 = 52

Number of tickets sold on Wednesday
= 0.85 u + 1.4 u + 182
= 2.25 u + 182

2.25 u + 182 = 632
2.25 u = 632 - 182
2.25 u = 450

1 u = 450 ÷ 2.25 = 200

Amount collected from adult tickets on Tuesday
= 1 u x 36
= 200 x 36
= $7200

Amount collected from child tickets on Tuesday
= 11(1 u + 130)
= 11(200 + 130)
= 11 x 330
= $3630

Total amount collected on Tuesday
= 7200 + 3630
= $10830

Answer(s):$10830