Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the one that is different.
From the above Option we checkÂ
Option (B) 31-41
  41-31= 10
Option (C)61-71
  71-61 = 10
Option (D)83-97
97-83 = 14
Option (A) 73-79
    79-73 = 6
from the above Option B, C, D is the difference is two-digit But Option (A) is difference single digitÂ
therefore Option (A) 73-79 AnsÂ
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