Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.

324335 : 577

253471 : 778

⇒ 2+ 5 +3 +4 + 7 + 1 = 22

AND 7 + 7 + 8 =22

LHS = RHS

324335 : 577

⇒ 3 + 2 + 4 +3 + 3 + 5 = 20

AND 5 + 7 + 7 =19

LHS ≠ RHS

406321 : 493

⇒ 4 +0 +6 +3 + 2 + 1 = 16

AND 4 + 9 + 3 = 16

LHS = RHS

111617 : 278

⇒ 1+ 1 +1 +6 + 1 + 7 = 17

AND 2 + 7 + 8 =17

LHS = RHS