Problem
First name
Simran Sandhu
School
Beauchamp College
Country
Age
17
D = Danesh
D-4=12
To 'undo' add 4
D=12+4
D=16
M = Meg
M+8=12
To 'undo' minus 8
M=12-8
M=4
C = Chris
C/2=12
To 'undo' times 2
C=12*2
C=24