A jar contains only red and blue marbles in a ratio of 8:9. If there are 45 blue marbles, how many red marbles are there?
Difficulty: Medium
About this MCQ
Medium GMAT item. Correct choice: D. 40.
- A. 85
Why not A: “85” is not 40.
- B. 48
Why not B: “48” is not 40.
- C. 45
Why not C: “45” is not 40.
- D. 40 ✓
Correct answer
D. 40
Explanation
40 (option D) is the accepted answer to “A jar contains only red and blue marbles in a ratio of 8:9. If there are 45 blue marbles, how many red marbles are there”. Option A (85) is a different value from 40. Option B (48) is a different value from 40. Option C (45) is a different value from 40. Keep 40 as the GMAT fact for this stem.
Source: Original practice question, MCQsHub
Tags: Math, American Exams, Ratios, GMAT
Submitted by: MCQsHub Editorial
Related MCQs
- A car travels at 65 miles per hour. How far does it travel in 4 hours?
- A car travels at 30 miles per hour. How far does it travel in 2.5 hours?
- What is the greatest common factor (GCF) of 29 and 85?
- A company's profit margin is 10% of its 0,000 revenue. What are the total costs?
- A company's profit margin is 30% of its 0,000 revenue. What are the total costs?
- A company's profit margin is 30% of its 0,000 revenue. What are the total costs?