A six-sided number cube is rolled, and then a spinner with 5 equal sections labeled A through E is spun.

What is the probability of rolling a number less than 4 and spinning a D?

A. 1/15
B. 1/10
C. 2/15
D. 7/10

1 answer

First, we need to determine the probability of rolling a number less than 4, which would be rolling a 1, 2, or 3. There are a total of 6 sides on the number cube, so the probability of rolling a number less than 4 is 3/6 or 1/2.

Next, we need to find the probability of spinning a D on the spinner, which has 5 equal sections labeled A through E. Since there is 1 section labeled D, the probability of spinning a D is 1/5.

To find the overall probability of rolling a number less than 4 and spinning a D, we multiply the individual probabilities together:

1/2 (rolling a number less than 4) * 1/5 (spinning a D) = 1/10

Therefore, the correct answer is:

B. 1/10