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)".