Question

A bag contains 7 red marbles, 12 orange marbles, 18 yellow marbles, and 5 purple marbles. A marble is drawn at random from the bag.

What is the probability that the marble drawn will not be orange?

A.1/30


B.2/7


C.5/7


D.1/12

Answer 1

Okay, how many total marbles are there?

Answer 2

Count again

Answer 3

42

Answer 4

Yes, and how many orange marbles are there?

Answer 5

12

Answer 6

Yes, what's 42 - 12?

Answer 7

30

Answer 8

Yes, so the probability that you will not choose an orange marble is 30/42..or if you want to simplify it 5/7.

Answer 9

thx