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Directions (1-5): In each of the following questions a number series is given which has only one wrong number. You have to find out the wrong number.
343,729,1331, 2197, 3375, 4914, 6859
  • a)
    4914
  • b)
    6859
  • c)
    343
  • d)
    2197
  • e)
    729
Correct answer is option 'A'. Can you explain this answer?
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Explanation:

The given number series is 343, 729, 1331, 2197, 3375, 4914, 6859. We need to identify the wrong number in this series.

The pattern followed in this series is that each number is obtained by taking the cube of the previous number. Let's verify this pattern for each number:

- 729 = 9^3
- 1331 = 11^3
- 2197 = 13^3
- 3375 = 15^3
- 4914 = 18^3
- 6859 = 19^3

So, all the numbers except 4914 can be obtained by taking the cube of the previous number. Therefore, the wrong number in the series is 4914.

Answer: The wrong number in the series is option 'A' (4914).
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