SSC JE Mechanical Engineering 11 Oct 2020 Shift 1 Papers

The logic followed here is:-
Second Number = First number × (First number + 2)
The given number pair is (11, 143)
First Number = 11
Second Number = First number × (First number + 2)
= 11 × (11 + 2)
= 11 × 13
= 143 = 143
Checking the options:
2) (17, 323)
Second Number = First number × (First number + 2)
= 17 × (17 + 2)
= 17 × 19
= 323 = 323
Hence, the correct answer is "(17, 323)".