Answer:
Number of adult tickets sold = 121
Explanation:
Let x = number of student tickets and y = number of adult tickets sold
Then:-
x + y = 300..................(1) Also using the cost of the tickets:_
7x + 10y = 2463............(2)
Mutilply equation (1) by 10:0
10x + 10y = 3000..........(3)
Subtract the equations (3) - (2) :-
3x + 0 = 537
x = 537 / 3 = 179
So y = 300 - 179 = 121