Find the next letter group: AB, DE, GH, JK, ?
- A.LM
- B.MN ✓
- C.NO
- D.MO
Explanation: The first letter of each group moves 3 positions ahead each time: A, D, G, J, next is M — followed by N.
Class 6 IMO Mathematics Olympiad practice · Patterns & Sequences · Number & Letter Sequences
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