A cube has faces numbered 1 to 6. Opposite faces always add to 7. Which number is opposite 4?
- A.1
- B.2
- C.3 ✓
- D.5
Explanation: 7 − 4 = 3, so 3 is opposite 4.
Class 6 IMO Mathematics Olympiad practice · Visual & Spatial Reasoning · Mirror Images, Folding & Cubes
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