Four number-triads have been given, out of which three are alike in some manner and one is different. Select the number-triad that is different from the rest.?

Option 2 : 17, 18, 6481

The logic followed here is :

• (sum of two digits of the second number)²(Sum of two digits of the first number)2 = Third number

​Note: Two square terms are not multiplied, they are placed next to each other.

(1):  [ alt="F2 Madhuri SSC 20.05.2022 D1" src="//storage.googleapis.com/tb-img/production/22/05/F2_Madhuri_SSC_20.05.2022_D1.png" style="width: 134px; height: 198px;">

(2): [ alt="F2 Madhuri SSC 20.05.2022 D2" src="//storage.googleapis.com/tb-img/production/22/05/F2_Madhuri_SSC_20.05.2022_D2.png" style="width: 134px; height: 201px;">

(3): [ alt="F2 Madhuri SSC 20.05.2022 D3" src="//storage.googleapis.com/tb-img/production/22/05/F2_Madhuri_SSC_20.05.2022_D3.png" style="width: 133px; height: 200px;">

(4): [ alt="F2 Madhuri SSC 20.05.2022 D4" src="//storage.googleapis.com/tb-img/production/22/05/F2_Madhuri_SSC_20.05.2022_D4.png" style="height: 200px; width: 133px;">

As all options follow the logic except option (2). 

Hence, the correct answer is 17,18,6481.