Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number pair that is different.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 13: 90.
The logic used here is:
1st number × 4 - 8 = 2nd number
Option 1: 19: 68
19 × 4 - 8 = 68
This follows the logic.
Option 2: 23: 84
23 × 4 - 8 = 84
This follows the logic.
Option 3: 13: 90
13 × 4 - 8 = 44
This does not follow the logic.
Hence, option 3 is the odd one out.