On Wednesday, 790 more men than women attended a concert. On Thursday, the number of men decreased by 10% and the number of women increased by 80%. 1494 audience attended the concert on Thursday. If each ticket cost $12, how much money was collected from the sale of concert tickets on Wednesday?

	Men		Women
Comparing between the men and the women at first	790 more
Before	10x1	+ 790	5x2
Change	- 1x1	- 79	+ 4x2
After	9x1	+ 711	9x2

	Men		Women
Before	10 u + 790		10 u
Change	- 1 u - 79		+ 8 u
After	9 u + 711		18 u

10% = ¹⁰₁₀₀ = ¹₁₀

80% = ⁸⁰₁₀₀ = ⁴₅

10% x 790
= ¹⁰₁₀₀ x 790
= 79

790 - 79 = 711

Total number of tickets sold on Thursday 
= 9 u + 711 + 18 u
= 27 u + 711 

27 u + 711 = 1494
27 u = 1494 - 711
27 u = 783

1 u = 783 ÷ 27 = 29

Total number of tickets sold on Wednesday
= 10 u + 790 + 10 u 
= 20 u + 790
= 20 x 29 + 711
= 1291

Amount collected from the sale of concert tickets on Wednesday
= 1291 x 12
= $15492

Answer(s): $15492