Nicole pulls a colored marble out of a bowl, choosing the marble at random. There are 120 marbles in the bowl, of which 80 are black, 28 are white, and the rest are red. Use words and numbers to describe the probability that she will pull a red marble out of the bowl. How would I solve such a question

1 answer

To solve this question, we first need to determine the total number of red marbles in the bowl.

Given that there are 80 black marbles and 28 white marbles, the total number of black and white marbles is 80 + 28 = 108.

Since there are 120 marbles in total, the number of red marbles can be calculated by subtracting the number of black and white marbles from the total number of marbles: 120 - 108 = 12 red marbles.

Therefore, the probability of Nicole pulling a red marble out of the bowl can be calculated by dividing the number of red marbles by the total number of marbles: 12/120 = 1/10.

So, the probability that Nicole will pull a red marble out of the bowl is 1/10 or 10%.