A jar contains only red and blue marbles in a ratio of 2:4. If there are 12 blue marbles, how many red marbles are there?
Difficulty: Medium
About this MCQ
Medium SAT item. Correct choice: A. 6.
- A. 6 ✓
- B. 18
Why not B: “18” is not 6.
- C. 12
Why not C: “12” is not 6.
- D. 8
Why not D: “8” is not 6.
Correct answer
A. 6
Explanation
6 (option A) is the accepted answer to “A jar contains only red and blue marbles in a ratio of 2:4. If there are 12 blue marbles, how many red marbles are there”. Option B (18) is a different value from 6. Option C (12) is a different value from 6. Option D (8) is a different value from 6. Keep 6 as the SAT fact for this stem.
Source: Original practice question, MCQsHub
Tags: SAT, Math, American Exams, Ratios
Submitted by: MCQsHub Editorial