At a park, each adult ticket cost $25 and each child ticket cost $8. On Monday, the number of adult tickets sold was 104 less than the number of child tickets. On Tuesday, the number of adult tickets sold decreased by 35% while the number of child tickets sold increased by 25%. If a total of 1270 tickets were sold on Tuesday, how much money was collected on Monday?

	Adult tickets	Child tickets	Total tickets
Before	1 u	1 u + 104	2 u + 104
Change	- 0.35 u	+ 0.25 u + 26
After	0.65 u	1.25 u + 130	1.9 u + 130

35% x 1 u = ³⁵₁₀₀ x 1 u = 0.35 u 
25% x 1 u = ²⁵₁₀₀ x 1 u = 0.25 u
25% x 104 = ²⁵₁₀₀ x 104 = 26

Number of tickets sold on Tuesday
= 0.65 u + 1.25 u + 130
= 1.9 u + 130

1.9 u + 130 = 1270
1.9 u = 1270 - 130
1.9 u = 1140

1 u = 1140 ÷ 1.9 = 600

Amount collected from adult tickets on Monday
= 1 u x 25
= 600 x 25
= $15000

Amount collected from child tickets on Monday
= 8(1 u + 104)
= 8(600 + 104)
= 8 x 704
= $5632

Total amount collected on Monday
= 15000 + 5632
= $20632

Answer(s):$20632