On Friday, 370 more women than men attended a concert. On Saturday, the number of women decreased by 40% and the number of men increased by 50%. 936 audience attended the concert on Saturday. If each ticket cost $9, 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	370 more
Before	5x2	+ 370	2x5
Change	- 2x2	- 148	+ 1x5
After	3x2	+ 222	3x5

	Women		Men
Before	10 u + 370		10 u
Change	- 4 u - 148		+ 5 u
After	6 u + 222		15 u

40% = ⁴⁰₁₀₀ = ²₅

50% = ⁵⁰₁₀₀ = ¹₂

40% x 370
= ⁴⁰₁₀₀ x 370
= 148

370 - 148 = 222

Total number of tickets sold on Saturday 
= 6 u + 222 + 15 u
= 21 u + 222 

21 u + 222 = 936
21 u = 936 - 222
21 u = 714

1 u = 714 ÷ 21 = 34

Total number of tickets sold for the two days
= (10 u + 370) + 10 u + (6 u + 222) + 15 u
= 41 u + 592
= 41 x 34 + 592
= 1986

Amount collected from the sale of concert tickets for the two days
= 1986 x 9
= $17874

Answer(s): $17874