In the following number-pairs, the second number is derived by applying a specific mathematical operation to the first number. In three of the four pa...
Question
In the following number-pairs, the second number is derived by applying a specific mathematical operation to the first number. In three of the four pairs, the same rule is used, forming a group. Identify the number-pair that does NOT follow this common pattern.
(Note: Perform operations on the entire number as a whole, not on individual digits. For example, for 13, operations should be on 13 itself, not on 1 and 3 separately.)