A jar contains only red and blue marbles in a ratio of 4:6. If there are 42 blue marbles, how many red marbles are there?
Difficulty: Medium
About this MCQ
Medium SAT item. Correct choice: D. 28.
- A. 70
Why not A: “70” is not 28.
- B. 42
Why not B: “42” is not 28.
- C. 32
Why not C: “32” is not 28.
- D. 28 ✓
Correct answer
D. 28
Explanation
28 (option D) is the accepted answer to “A jar contains only red and blue marbles in a ratio of 4:6. If there are 42 blue marbles, how many red marbles are there”. Option A (70) is a different value from 28. Option B (42) is a different value from 28. Option C (32) is a different value from 28. Keep 28 as the SAT fact for this stem.
Source: Original practice question, MCQsHub
Tags: SAT, Math, American Exams, Ratios
Submitted by: MCQsHub Editorial
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