A jar contains only red and blue marbles in a ratio of 6:8. If there are 16 blue marbles, how many red marbles are there?
Difficulty: Medium
About this MCQ
Medium GRE item. Correct choice: A. 12.
- A. 12 ✓
- B. 18
Why not B: “18” is not 12.
- C. 16
Why not C: “16” is not 12.
- D. 28
Why not D: “28” is not 12.
Correct answer
A. 12
Explanation
12 (option A) is the accepted answer to “A jar contains only red and blue marbles in a ratio of 6:8. If there are 16 blue marbles, how many red marbles are there”. Option B (18) is a different value from 12. Option C (16) is a different value from 12. Option D (28) is a different value from 12. Keep 12 as the GRE fact for this stem.
Source: Original practice question, MCQsHub
Tags: Math, American Exams, GRE, Ratios
Submitted by: MCQsHub Editorial
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