At a zoo, each adult ticket cost $26 and each child ticket cost $15. On Tuesday, the number of adult tickets sold was 120 less than the number of child tickets. On Wednesday, the number of adult tickets sold decreased by 30% while the number of child tickets sold increased by 20%. If a total of 334 tickets were sold on Wednesday, how much money was collected on Tuesday?

	Adult tickets	Child tickets	Total tickets
Before	1 u	1 u + 120	2 u + 120
Change	- 0.3 u	+ 0.2 u + 24
After	0.7 u	1.2 u + 144	1.9 u + 144

30% x 1 u = ³⁰₁₀₀ x 1 u = 0.3 u 
20% x 1 u = ²⁰₁₀₀ x 1 u = 0.2 u
20% x 120 = ²⁰₁₀₀ x 120 = 24

Number of tickets sold on Wednesday
= 0.7 u + 1.2 u + 144
= 1.9 u + 144

1.9 u + 144 = 334
1.9 u = 334 - 144
1.9 u = 190

1 u = 190 ÷ 1.9 = 100

Amount collected from adult tickets on Tuesday
= 1 u x 26
= 100 x 26
= $2600

Amount collected from child tickets on Tuesday
= 15(1 u + 120)
= 15(100 + 120)
= 15 x 220
= $3300

Total amount collected on Tuesday
= 2600 + 3300
= $5900

Answer(s):$5900