Find the wrong number in the series given below: 1, 2, 5, 14, 41, 125
A125 ✓ Correct
B5
C2
D41
Correct answer: (A) 125
Explanation
The wrong number is 125.
Each term is the previous term times 3 minus 1.
1 x 3 - 1 = 2, 2 x 3 - 1 = 5, 5 x 3 - 1 = 14.
14 x 3 - 1 = 41, then 41 x 3 - 1 = 122.
The series shows 125, but the correct term is 122.
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