Answer:
Section A has 24,500 seats.
Section B has 14,400 seats.
Section C has 10,100 seats.
Explanation:
Let the number of seats in Section B be y and in Section C be z seats.
Number of seats in Section A is 1/2 * 49000 = 24,500.
Also y + z = 24,500....... (1)
And using the costs of the tickets:
25*24,500 + 20y + 15z = 1,052,000
20y + 15z = 1052000 - 25*24500
20y + 15z = 439,500........ (2) Now multiply (1) by 20:
20y + 20z = 490,000 Subtracting
-5z = - 50,500
z = 10,100
and y = 24500 - 10,100
= 14,400.