Three of the following four triads are alike in a certain way as they are formed by performing same mathematical operations among themselves and thus form a group. Which triad does NOT belong to that group?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 5: 10: 125.
The logic used here is:
1st number × 2 + 1 = 2nd number
1st number3 = 3rd number
Option 1: 2: 5: 8
2 × 2 + 1 = 4 + 1 = 5
23 = 8
This follows the logic.
Option 2: 5: 10: 125
5 × 2 + 1 = 10 + 1 = 11
53 = 125
This does not follow the logic.
Hence, Option 2 is the odd one out.