Question

In her hall closet, Maria has a shelf that contains nothing but washcloths. This shelf contains 3 white washcloths and twice as many green washcloths as white washcloths. In addition, it also contains twice as many red washcloths as green washcloths. If Maria closes her eyes and picks out a washcloth at random from the shelf, what is the probability that she picks a green washcloth? A. B. C. D.

Answer 1

2/7

Explanation:First, determine how many washcloths of each type there are.

There are 4 white washcloths.

Since there are twice as many green washcloths as white washcloths, there are 8 green washcloths.

Since there are twice as many red washcloths as green washcloths, there are 16 red washcloths.

So, there are 28 washcloths in all.

Therefore, the probability that Maria picks a green washcloth is 8 out of 28, or , which simplifies to .