Solution

39296

Problem
Going to the cinema Back to problem
First name
Alasdair Austin
School
Chesterton CC
Country
England
Age
15

I use the trial and error technique. I struggled to find an answer reaching £100. With Adults:pensioners:Children I had 5:11:84. which took me to £90.90. So I increased the cost for Adults to £3.52 and keeping all the others the same, resulting in £100.