Question

Luis has 10 blue marbles, 8 red marbles, 5 orange marbles, and 7 green marbles in a bag. If he draws a marble, one at a time, what is the probability that he will NOT draw an orange marble?

Answer 1

Answer: 83.33%.

Explanation:

The total number of marbles in the bag is:

10 + 8 + 5 + 7 = 30

The number of marbles that are NOT orange is:

10 + 8 + 7 = 25

Therefore, the probability of drawing a marble that is NOT orange is:

25/30 = 5/6

So, the probability that Luis will NOT draw an orange marble is 5/6 or approximately 0.8333, which can also be expressed as a percentage as 83.33%.

Answer 2

5/6 or 0.8333

Explanation:

Add up all the possible marbles = 10+8+5+7 = 30 total marbles.

5 orange, 25 not orange.

25/30 = 5/6 = 0.8333