A jar contains only red and blue marbles in a ratio of 9:2. If there are 4 blue marbles, how many red marbles are there?
Difficulty: Medium
About this MCQ
Medium GMAT item. Correct choice: A. 18.
- A. 18 ✓
- B. 4
Why not B: “4” is not 18.
- C. 27
Why not C: “27” is not 18.
- D. 22
Why not D: “22” is not 18.
Correct answer
A. 18
Explanation
18 (option A) is the accepted answer to “A jar contains only red and blue marbles in a ratio of 9:2. If there are 4 blue marbles, how many red marbles are there”. Option B (4) is a different value from 18. Option C (27) is a different value from 18. Option D (22) is a different value from 18. Keep 18 as the GMAT fact for this stem.
Source: Original practice question, MCQsHub
Tags: Math, American Exams, Ratios, GMAT
Submitted by: MCQsHub Editorial
Related MCQs
- If 5x + 11 = -14, what is the value of x?
- If 4x + 7 = -37, what is the value of x?
- If 5x + 9 = 19, what is the value of x?
- A jar contains only red and blue marbles in a ratio of 9:2. If there are 16 blue marbles, how many red marbles...
- If 3x + 3 = 33, what is the value of x?
- What is the greatest common factor (GCF) of 10 and 12?