A jar contains only red and blue marbles in a ratio of 8:6. If there are 18 blue marbles, how many red marbles are there?
- A. 24 ✓
- B. 18
- C. 42
- D. 32
Correct answer
A. 24
Explanation
The ratio 8:6 means for every 6 blue marbles there are 8 red. 18 blue ÷ 6 = 3 groups, so red marbles = 8 × 3 = 24.
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