Four letter-clusters have been given, out of which three are alike in some manner and one is different. Select the letter-cluster that is different.
Answer & explanation
Correct answer: option 4
BEHK ⇒ B →(+3)→E →(+3) → H →(+3)→K
QTWZ ⇒ Q →(+3)→T →(+3) → W →(+3)→Z
XADG ⇒ X →(+3)→A→(+3) →D →(+3)→G
NPSV ⇒ N→(+2) → P→(+3) → S →(+3)→V (ODD)