Category: Fluid Reasoning
Difficulty: Medium
Result: Wrong
6. Which one of the numbers does not belong in the following series?
2 - 5 - 7 - 14 - 41 - 122 - 365 - 1094 - 3281
- FIVE
- SEVEN◀ Correct Answer
- FOURTEEN
- FORTY ONE
- ONE HUNDRED TWENTY TWO
Your Answer: No Answer Given
In this question, you're asked to identify the number that doesn't belong in the given series. To solve this, it's important to recognize the pattern or mathematical rule governing the progression of numbers.
The series is: 2, 5, 7, 14, 41, 122, 365, 1094, 3281.
Observe how the numbers increase rapidly. Each number follows a pattern where the next number is generated by multiplying the current number by 3 and subtracting 1:
- 2 * 3 - 1 = 5
- 5 * 3 - 1 = 14
- 14 * 3 - 1 = 41
- 41 * 3 - 1 = 122
- 122 * 3 - 1 = 365
- 365 * 3 - 1 = 1094
- 1094 * 3 - 1 = 3281
However, 7 does not fit this rule, making it the outlier.
The correct answer is 7.