The ratio of boys to girls in a class is 3:2. If there are 18 boys, how many girls are there?
- A.10
- B.12 ✓
- C.14
- D.16
Explanation: 18 boys = 3 parts, so 1 part = 6. Girls = 2 parts = 12.
Class 6 IMO Mathematics Olympiad practice · Arithmetic · Ratio, Proportion & Percentages
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