At a tourist attraction, each adult ticket cost $27 and each child ticket cost $5. On Thursday, the number of adult tickets sold was 185 less than the number of child tickets. On Friday, the number of adult tickets sold decreased by 10% while the number of child tickets sold increased by 40%. If a total of 1179 tickets were sold on Friday, how much money was collected on Thursday?

	Adult tickets	Child tickets	Total tickets
Before	1 u	1 u + 185	2 u + 185
Change	- 0.1 u	+ 0.4 u + 74
After	0.9 u	1.4 u + 259	2.3 u + 259

10% x 1 u = ¹⁰₁₀₀ x 1 u = 0.1 u 
40% x 1 u = ⁴⁰₁₀₀ x 1 u = 0.4 u
40% x 185 = ⁴⁰₁₀₀ x 185 = 74

Number of tickets sold on Friday
= 0.9 u + 1.4 u + 259
= 2.3 u + 259

2.3 u + 259 = 1179
2.3 u = 1179 - 259
2.3 u = 920

1 u = 920 ÷ 2.3 = 400

Amount collected from adult tickets on Thursday
= 1 u x 27
= 400 x 27
= $10800

Amount collected from child tickets on Thursday
= 5(1 u + 185)
= 5(400 + 185)
= 5 x 585
= $2925

Total amount collected on Thursday
= 10800 + 2925
= $13725

Answer(s):$13725