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Find the one which does not belong to that group ?
  • a)
     343
  • b)
     121
  • c)
     1331
  • d)
     2197
  • e)
     125
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Find the one which does not belong to that group ?a)343b)121c)1331d)21...
343 = 73, 121 = 112, 1331 = 113, 2197 = 133 and 125 = 53.
343, 1331, 2197 and 125 are perfect cubes, but not 121.
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Most Upvoted Answer
Find the one which does not belong to that group ?a)343b)121c)1331d)21...
Explanation:
To find the number that does not belong to the given group, we need to identify a pattern or rule that the other numbers follow. Let's analyze each number:

343: This number is the cube of 7 (7^3 = 343).
121: This number is the square of 11 (11^2 = 121).
1331: This number is the cube of 11 (11^3 = 1331).
2197: This number is the cube of 13 (13^3 = 2197).
125: This number is the cube of 5 (5^3 = 125).

Pattern: All the numbers in the group are perfect cubes of prime numbers.

Explanation:
The number 121 does not fit the pattern because it is not a perfect cube of a prime number. It is the square of a prime number (11), but not a cube.
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