PSAT Math Multiple-Choice Question 369: Answer and Explanation

Question: 369

A bag of marbles contains 60 marbles that are either red, blue, or yellow. If there are 12 blue marbles, what percent of the bag is made of red and yellow marbles?

• A. 50%
• B. 60%
• C. 70%
• D. 80%

Correct Answer: D

Explanation:

D

Difficulty: Medium

Getting to the Answer: The question asks about the percent that is NOT blue marbles, so calculate the percent of blue marbles and subtract that from 100%.

Choice (D) is correct.