On Tuesday, 150 more women than men attended a concert. On Wednesday, the number of women decreased by 40% and the number of men increased by 70%. 1309 audience attended the concert on Wednesday. If each ticket cost $12, how much money was collected from the sale of concert tickets for the two days?

	Women		Men
Comparing between the women and the men at first	150 more
Before	5x2	+ 150	10x1
Change	- 2x2	- 60	+ 7x1
After	3x2	+ 90	17x1

	Women		Men
Before	10 u + 150		10 u
Change	- 4 u - 60		+ 7 u
After	6 u + 90		17 u

40% = ⁴⁰₁₀₀ = ²₅

70% = ⁷⁰₁₀₀ = ⁷₁₀

40% x 150
= ⁴⁰₁₀₀ x 150
= 60

150 - 60 = 90

Total number of tickets sold on Wednesday 
= 6 u + 90 + 17 u
= 23 u + 90 

23 u + 90 = 1309
23 u = 1309 - 90
23 u = 1219

1 u = 1219 ÷ 23 = 53

Total number of tickets sold for the two days
= (10 u + 150) + 10 u + (6 u + 90) + 17 u
= 43 u + 240
= 43 x 53 + 240
= 2519

Amount collected from the sale of concert tickets for the two days
= 2519 x 12
= $30228

Answer(s): $30228