Which pair has the same relationship as 8 : 64?
- A.5 : 20
- B.6 : 36 ✓
- C.7 : 42
- D.9 : 63
Explanation: 8 : 64 is n : n² (8² = 64). Only 6 : 36 fits this same rule (6² = 36).
Class 6 IMO Mathematics Olympiad practice · Patterns & Sequences · Number & Letter Sequences
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