On Tuesday, 610 more women than men attended a concert. On Wednesday, the number of women decreased by 50% and the number of men increased by 80%. 673 audience attended the concert on Wednesday. If each ticket cost $7, how much money was collected from the sale of concert tickets on Tuesday?

	Women		Men
Comparing between the women and the men at first	610 more
Before	2x5	+ 610	5x2
Change	- 1x5	- 305	+ 4x2
After	1x5	+ 305	9x2

	Women		Men
Before	10 u + 610		10 u
Change	- 5 u - 305		+ 8 u
After	5 u + 305		18 u

50% = ⁵⁰₁₀₀ = ¹₂

80% = ⁸⁰₁₀₀ = ⁴₅

50% x 610
= ⁵⁰₁₀₀ x 610
= 305

610 - 305 = 305

Total number of tickets sold on Wednesday 
= 5 u + 305 + 18 u
= 23 u + 305 

23 u + 305 = 673
23 u = 673 - 305
23 u = 368

1 u = 368 ÷ 23 = 16

Total number of tickets sold on Tuesday
= 10 u + 610 + 10 u 
= 20 u + 610
= 20 x 16 + 305
= 625

Amount collected from the sale of concert tickets on Tuesday
= 625 x 7
= $4375

Answer(s): $4375