Question:
Find the odd one out from the following series:
\[
8,\ 27,\ 64,\ 100,\ 125,\ 216,\ 343
\]
Find the odd one out from the following series:
\[ 8,\ 27,\ 64,\ 100,\ 125,\ 216,\ 343 \]
\[ 8,\ 27,\ 64,\ 100,\ 125,\ 216,\ 343 \]
Show Hint
When numbers look irregular, check for common patterns like squares or cubes—it often reveals the odd one.
Updated On: Apr 21, 2026
- 27
- 100
- 125
- 343
Show Solution
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The Correct Option is B
Solution and Explanation
Concept:
Check if the numbers follow a known pattern such as cubes.
Step 1: Identify the pattern.
\[ 8 = 2^3,\quad 27 = 3^3,\quad 64 = 4^3 \] \[ 125 = 5^3,\quad 216 = 6^3,\quad 343 = 7^3 \]
Step 2: Check the remaining number.
\[ 100 \neq n^3 \] Thus, 100 does not follow the cube pattern.
Hence, the odd one out is 100.
Step 1: Identify the pattern.
\[ 8 = 2^3,\quad 27 = 3^3,\quad 64 = 4^3 \] \[ 125 = 5^3,\quad 216 = 6^3,\quad 343 = 7^3 \]
Step 2: Check the remaining number.
\[ 100 \neq n^3 \] Thus, 100 does not follow the cube pattern.
Hence, the odd one out is 100.
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