Multiple choice

There are two dice (red die and green die). What is the probability that a prime number on the red die is divisible by number on the green die?

  1. 13/36

  2. 12/36

  3. 3/36

  4. 14/36

  5. 5/36
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The calculation of probability is as follows: 
2 on the red die is divisible by 2 on the green die. 3 on the red die is divisible by 3 on the green die. 5 on the red die is divisible by 5 on the green die. The total number of events is 1 + 1 + 1 = 3 and the sample space is 6 * 6 = 36. Hence, the probability is 3/36.

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