If 4 → 16 and 7 → 49, then 7 → ?
- A.14
- B.21
- C.50
- D.49 ✓
Explanation: Each number maps to its own square (4→16, 7→49), so 7 → 7² = 49.
Class 6 IMO Mathematics Olympiad practice · Patterns & Sequences · Number & Letter Sequences
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