Mrs Lim was shopping at Cold Storage. After buying some groceries, she could play a game to win a prize. She had to roll two dice at the same time. On each dice, there were six numbers – 1, 2, 3, 4, 5 and 6.
If the dice showed 2 different numbers, she would win a prize.
How many different ways could she roll to win a prize?
(example – 1, 6 and 6, 1 are considered to be two different ways.)