The second number in the given number-pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) is/are followed in all the number-pairs, except one. Find that odd number-pair.
(NOTE: The relation should be found without breaking down the numbers into its constituent digits)
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 18 : 306.
Logic: (1st number)2 + 1st number = 2nd number
Except 18 : 306, All number-pairs follow the same logic. While 18 : 306 → 182 + 18 = 324 + 18 = 342 ≠ 306