Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out.
Answer & explanation
Correct answer: option 3
EIO ⇒ E →(+4)→I →(+6)→O
YCI ⇒ Y →(+4)→C →(+6)→I
PTY ⇒ P→(+4)→T→(+5)→Y(ODD)
DHN⇒ D →(+4)→H→(+6)→N