Difficulty: Easy
Correct Answer: None of these
Explanation:
Introduction / Context:
This problem mimics a percentage calculation. Multiplying first and then dividing by 100 ensures the decimal is placed correctly. The catch is that the correct value may be absent from the listed options.
Given Data / Assumptions:
Concept / Approach:
First do the product 3.242 × 14, then move the decimal point two places left due to division by 100.
Step-by-Step Solution:
3.242 × 14 = 3.242 × (10 + 4) = 32.42 + 12.968 = 45.388.Now divide by 100: 45.388 / 100 = 0.45388.
Verification / Alternative check:
Regard the original as 3.242 × 0.14 which is 0.45388 directly, confirming the same value.
Why Other Options Are Wrong:
0.045388 shifts the decimal three places; 4.5388 and 453.88 shift it in the wrong direction; the correct 0.45388 is not explicitly listed, so “None of these” is the right choice.
Common Pitfalls:
Moving the decimal the wrong number of places after dividing by 100; choosing the closest-looking option instead of the exact value.
Final Answer:
None of these
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