At a stadium, each adult ticket cost $39 and each child ticket cost $11. On Wednesday, the number of adult tickets sold was 200 less than the number of child tickets. On Thursday, the number of adult tickets sold decreased by 10% while the number of child tickets sold increased by 40%. If a total of 2350 tickets were sold on Thursday, how much money was collected on Wednesday?

	Adult tickets	Child tickets	Total tickets
Before	1 u	1 u + 200	2 u + 200
Change	- 0.1 u	+ 0.4 u + 80
After	0.9 u	1.4 u + 280	2.3 u + 280

10% x 1 u = ¹⁰₁₀₀ x 1 u = 0.1 u 
40% x 1 u = ⁴⁰₁₀₀ x 1 u = 0.4 u
40% x 200 = ⁴⁰₁₀₀ x 200 = 80

Number of tickets sold on Thursday
= 0.9 u + 1.4 u + 280
= 2.3 u + 280

2.3 u + 280 = 2350
2.3 u = 2350 - 280
2.3 u = 2070

1 u = 2070 ÷ 2.3 = 900

Amount collected from adult tickets on Wednesday
= 1 u x 39
= 900 x 39
= $35100

Amount collected from child tickets on Wednesday
= 11(1 u + 200)
= 11(900 + 200)
= 11 x 1100
= $12100

Total amount collected on Wednesday
= 35100 + 12100
= $47200

Answer(s):$47200