A jar contains only red and blue marbles in a ratio of 8:7. If there are 28 blue marbles, how many red marbles are there?
Difficulty: Medium
About this MCQ
Medium ACT item. Correct choice: A. 32.
- A. 32 ✓
- B. 28
Why not B: “28” is not 32.
- C. 60
Why not C: “60” is not 32.
- D. 40
Why not D: “40” is not 32.
Correct answer
A. 32
Explanation
32 (option A) is the accepted answer to “A jar contains only red and blue marbles in a ratio of 8:7. If there are 28 blue marbles, how many red marbles are there”. Option B (28) is a different value from 32. Option C (60) is a different value from 32. Option D (40) is a different value from 32. Keep 32 as the ACT fact for this stem.
Source: Original practice question, MCQsHub
Tags: Math, American Exams, ACT, Ratios
Submitted by: MCQsHub Editorial
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