Question 1007564
Let adult ticket be a
Let child ticket be c

a + c = 65
6a + 3.5c = 340

Multiply first equation by 6 to eliminate a:
6a + 6c = 390
6a + 3.5c = 340

Subtract the equations:

2.5c = 50
c = 20
Substitute c to get a:
a + c = 65
a + 20 = 65
a = 45

Final Answer:
Adult Tickets= 45
Child Tickets= 20