A and B throw a pair of dice. If A throws 9, find B's chance of throwing a higher number.
A throws 9 and B throws a higher number Thus, B throws 10, 11 or 12
Total number of outcomes = 6×6×36
Number of favourable outcomes = 6 [(4, 6), (5, 5), (6, 4), (5, 6), (6, 5), (6, 6)]
∴ P(B throwing a number greater than 9
=636=16