On Thursday, 240 more men than women attended a concert. On Friday, the number of men decreased by 10% and the number of women increased by 50%. 552 audience attended the concert on Friday. If each ticket cost $12, 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	240 more
Before	10x1	+ 240	2x5
Change	- 1x1	- 24	+ 1x5
After	9x1	+ 216	3x5

	Men		Women
Before	10 u + 240		10 u
Change	- 1 u - 24		+ 5 u
After	9 u + 216		15 u

10% = ¹⁰₁₀₀ = ¹₁₀

50% = ⁵⁰₁₀₀ = ¹₂

10% x 240
= ¹⁰₁₀₀ x 240
= 24

240 - 24 = 216

Total number of tickets sold on Friday 
= 9 u + 216 + 15 u
= 24 u + 216 

24 u + 216 = 552
24 u = 552 - 216
24 u = 336

1 u = 336 ÷ 24 = 14

Total number of tickets sold for the two days
= (10 u + 240) + 10 u + (9 u + 216) + 15 u
= 44 u + 456
= 44 x 14 + 456
= 1072

Amount collected from the sale of concert tickets for the two days
= 1072 x 12
= $12864

Answer(s): $12864