Multiple choice

If a blue dice and a green dice are used, in how many ways can a sum of nine be obtained by throwing them together?

  1. 2

  2. 3

  3. 4

  4. 5

  5. 6
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Since the dice are distinguishable, the number of ways one can obtain a sum of nine = (b3, g6), (b6, g3), (b4, g5),(b5, g4). As all of these ways occur separately, number of ways = 4.

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