Identify the odd number: Among 119, 154, 85, and 51, three are multiples of 17 while one is not. Choose the non-multiple of 17.
Verbal Reasoning
Classification
Difficulty: Easy
Choose an option
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A119
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B154
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C85
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D51
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ENone of these
Answer
Correct Answer: 154
Explanation
Introduction / Context:This set highlights a specific divisor (17). The outlier is the number not divisible by 17.
Given Data / Assumptions:
- 119 = 7 * 17; 85 = 5 * 17; 51 = 3 * 17.
- 154 is near 153 (9 * 17) and 170 (10 * 17).
Concept / Approach:Compare to adjacent multiples of 17 to test divisibility quickly.
Step-by-Step Solution:
119 → 17 * 7 → divisible.85 → 17 * 5 → divisible.51 → 17 * 3 → divisible.154 → not equal to 17 * k for integer k (between 153 and 170) → not divisible.Verification / Alternative check:Compute 154 ÷ 17 ≈ 9.058… non-integer. Hence it is the outlier.
Why Other Options Are Wrong:Each is an exact multiple of 17.
Common Pitfalls:Assuming “nearby” to a multiple implies divisibility; exact equality is required.
Final Answer:154 is not divisible by 17 and is the odd number.