Choose the odd number: Three numbers are divisible by 4; one is not. Identify the number that is not a multiple of 4.
Verbal Reasoning
Classification
Difficulty: Easy
Choose an option
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A64
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B208
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C316
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D118
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ENone of these
Answer
Correct Answer: 118
Explanation
Introduction / Context:Divisibility by 4 can be checked using the last two digits. The outlier fails this test.
Given Data / Assumptions:
- Set: 64, 208, 316, 118.
- Rule: A number is divisible by 4 if its last two digits form a number divisible by 4.
Concept / Approach:Inspect the last two digits and apply the rule quickly.
Step-by-Step Solution:
64 → last two digits 64 → divisible by 4.208 → last two digits 08 → divisible by 4.316 → last two digits 16 → divisible by 4.118 → last two digits 18 → not divisible by 4.Verification / Alternative check:Direct division: 64/4 = 16, 208/4 = 52, 316/4 = 79, while 118/4 = 29.5 (non-integer).
Why Other Options Are Wrong:They satisfy the divisibility-by-4 condition.
Common Pitfalls:Checking only evenness; divisibility by 4 is stricter than by 2.
Final Answer:118 is not divisible by 4 and is the odd number.