On Wednesday, 720 more men than women attended a concert. On Thursday, the number of men decreased by 40% and the number of women increased by 50%. 1209 audience attended the concert on Thursday. If each ticket cost $14, how much money was collected from the sale of concert tickets for the two days?

	Men		Women
Comparing between the men and the women at first	720 more
Before	5x2	+ 720	2x5
Change	- 2x2	- 288	+ 1x5
After	3x2	+ 432	3x5

	Men		Women
Before	10 u + 720		10 u
Change	- 4 u - 288		+ 5 u
After	6 u + 432		15 u

40% = ⁴⁰₁₀₀ = ²₅

50% = ⁵⁰₁₀₀ = ¹₂

40% x 720
= ⁴⁰₁₀₀ x 720
= 288

720 - 288 = 432

Total number of tickets sold on Thursday 
= 6 u + 432 + 15 u
= 21 u + 432 

21 u + 432 = 1209
21 u = 1209 - 432
21 u = 777

1 u = 777 ÷ 21 = 37

Total number of tickets sold for the two days
= (10 u + 720) + 10 u + (6 u + 432) + 15 u
= 41 u + 1152
= 41 x 37 + 1152
= 2669

Amount collected from the sale of concert tickets for the two days
= 2669 x 14
= $37366

Answer(s): $37366