Question:
Identify the odd one out in the series:
28, 54, 128, 182, 302, 378, 548
Identify the odd one out in the series:
28, 54, 128, 182, 302, 378, 548
28, 54, 128, 182, 302, 378, 548
Show Hint
In odd-one-out questions, first check divisibility, factorization, and relationships between neighboring terms.
Updated On: Jun 15, 2026
- 128
- 182
- 302
- 548
Show Solution
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The Correct Option is A
Solution and Explanation
Concept:
Most terms can be expressed as the product of two consecutive integers.
Step 1: Express each term as a product. \[ 28=4\times7,\quad 54=6\times9,\quad 182=13\times14, \] \[ 302=14\times21+8,\quad 378=18\times21,\quad 548=20\times27+8 \] Among the given terms, 128 does not fit the pattern followed by the remaining numbers.
Step 2: Conclusion. Hence, the odd term is \[ \boxed{128} \]
Step 1: Express each term as a product. \[ 28=4\times7,\quad 54=6\times9,\quad 182=13\times14, \] \[ 302=14\times21+8,\quad 378=18\times21,\quad 548=20\times27+8 \] Among the given terms, 128 does not fit the pattern followed by the remaining numbers.
Step 2: Conclusion. Hence, the odd term is \[ \boxed{128} \]
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