Entrance Exams Interview Question:

The value of (222) in base X when converted to base 10 is P.
The value of (222) in base Y when converted to base 10 is Q.
If the value of (P - Q) in base 10 = 28, then what is the
value of (Q - X) in base 10?
a) 80
b) 108
c) 92
d) Cannot be determined