Solution

39371

First name
jacob
School
glenmore park public school
Country
Age
11

The answer is:
3 adults = 10.50
47 pensioners = 47.00
50 children = 42.50

total = 100.00

To work it out i used the guess strategy. I made a table working through the multiples of 3.50 then trying to balance the pensioners and children.