Question

A red die and a blue die are rolled at the same time. What is the probability that the red die lands on a 5 and the blue die lands on a prime number?

Answer 1

There are six possible outcomes when rolling a die, and three of them are prime numbers (2, 3, and 5). Therefore, the probability of rolling a prime number on a single die is 3/6, or 1/2.

The probability of rolling a 5 on the red die is 1/6, since there is only one face with a 5 out of the six faces.

To find the probability that the red die lands on a 5 and the blue die lands on a prime number, we need to multiply the probabilities of these two events occurring:

P(red die lands on 5 AND blue die lands on prime number) = P(red die lands on 5) x P(blue die lands on prime number)

P(red die lands on 5 AND blue die lands on prime number) = (1/6) x (1/2)

P(red die lands on 5 AND blue die lands on prime number) = 1/12

Therefore, the probability that the red die lands on a 5 and the blue die lands on a prime number is 1/12 or approximately 0.083 or 8.3%.

Answer 2

(1/6) x (1/2) = 1/12. So the answer is 1/12.