Answer:
Price of senior citizen ticket = $7
Price of student ticket = $5
Explanation:
Let:
- senior citizen ticket price = a
 - student ticket price = b
 
Equations formed :
- 9a + 10b = 113
 - 2a + 10b = 64
 
Subtract : Equation 1 - Equation 2
- 9a + 10b - 2a - 10b = 113 - 64
 - 7a = 49
 - a = 7
 
Finding b
- 2(7) + 10b = 64
 - 10b = 50
 - b = 5
 
Solution
- Price of senior citizen ticket = $7
 - Price of student ticket = $5