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Find the next term / related pair from the given alternatives:
OQ - NS
GI - FJ
TV - SW
MO - LP
OQ - NS
Look for the difference between the letters in each pair. If the difference is consistent for 3 options and different for the 4th, that is your answer.
Look for the difference between the letters in each pair. If the difference is consistent for 3 options and different for the 4th, that is your answer.
Analyze Pair 1: OQ-NS
O=15, Q=17 (diff +2). N=14, S=19 (diff +5). Pattern: (+2, +5).
Analyze Pair 2: GI-FJ
G=7, I=9 (diff +2). F=6, J=10 (diff +4). Pattern: (+2, +4).
Analyze Pair 3: TV-SW
T=20, V=22 (diff +2). S=19, W=23 (diff +4). Pattern: (+2, +4).
Analyze Pair 4: MO-LP
M=13, O=15 (diff +2). L=12, P=16 (diff +4). Pattern: (+2, +4).
B, C, and D all follow the pattern where the first pair has a gap of 2 and the second pair has a gap of 4 (+2, +4). Option A follows (+2, +5), making it the odd one out.
A is correct because the pair OQ-NS does not follow the (+2, +4) difference pattern found in the other three pairs.
In letter-cluster reasoning, always convert letters to their numerical positions (A=1, B=2...) to identify arithmetic patterns quickly.