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Find the odd one out / complete the series / match the pattern (based on the given code letters):
GDAX
KHEB
AXUR
OKJH
OKJH
Look for the sequence of letter positions in the alphabet. 3 clusters follow a specific forward or skipping pattern (e.g., +N), while the odd one breaks it.
Look for the sequence of letter positions in the alphabet. 3 clusters follow a specific forward or skipping pattern (e.g., +N), while the odd one breaks it.
Mapping Alphabetical Positions
Convert each letter to its position: G=7, D=4, A=1, X=24. K=11, H=8, E=5, B=2. A=1, X=24, U=21, R=18. O=15, K=11, J=10, H=8.
Identifying the Pattern
For GDAX: 7-3=4, 4-3=1, 1-3=24. For KHEB: 11-3=8, 8-3=5, 5-3=2. For AXUR: 1-3=24, 24-3=21, 21-3=18. All follow a constant -3 rule.
Verifying the Odd Cluster
For OKJH: 15-4=11, 11-1=10, 10-2=8. This cluster does not follow the -3 difference rule found in the others.
A, B, and C all follow a consistent pattern of subtracting 3 from each letter's position to get the next, while D follows a non-uniform pattern.
D is correct because it is the only letter-cluster that does not follow the consistent -3 alphabetical position shift observed in the other three clusters.
When faced with letter clusters, immediately convert them to numbers. If the sequence is not immediately obvious, check the difference between consecutive letters.
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