(3 - 4) , (16 - 26) , (26 - 24) , (27 - 22)
Option:
Justification: In all other pairs, the first digits of the two numbers are identical as 0 in 03 - 04, 2 in 26 - 24, 2 in 27 - 22.

(3 - 4) , (16 - 26) , (26 - 24) , (27 - 22)
Justification: In all other pairs, the first digits of the two numbers are identical as 0 in 03 - 04, 2 in 26 - 24, 2 in 27 - 22.