10
QuizMultiple Choice

Probability of Compound Events — Quiz

Question 10 • Grade 7 Mathematics

Yuto has a bag containing 3 red marbles, 5 blue marbles, 2 green marbles, and 8 yellow marbles. Rin reaches into the bag, pulls out a blue marble, and puts it in her pocket. Then Misaki reaches in and pulls out a marble. What is the total number of possible outcomes for Misaki’s marble?

Answer
A
17
B
18
C
13
D
14

Explanation

There are 18 marbles in the bag at first. Rin removes one blue marble, so 17 marbles remain for Misaki to draw. Each remaining marble is a possible outcome, so the total is 17, choice A.

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