How many $\frac{1}{8}$s are there in $37\frac{1}{2}$?
Aptitude
Simplification
Difficulty: Easy
Choose an option
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A300
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B400
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C500
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DCannot be determined
Answer
Correct Answer: 300
Explanation
Concept & Logic
Finding "how many" of a specific fractional part exists inside a total amount is a straightforward division problem. The logic translates directly to dividing the total value by the size of the part: $$\text{Total} \div \text{Part}$$.
Step-by-Step Solution
* Identify the total amount: $$37\frac{1}{2}$$
* Identify the size of the part: $$\frac{1}{8}$$
* Convert the mixed fraction into an improper fraction for calculation:
$$37\frac{1}{2} = \frac{37 \times 2 + 1}{2} = \frac{75}{2}$$
* Set up the division equation:
$$\frac{75}{2} \div \frac{1}{8}$$
* To divide by a fraction, multiply by its reciprocal:
$$\frac{75}{2} \times \frac{8}{1}$$
* Simplify the expression by cancelling the common factor of 2 in the denominator and 8 in the numerator:
$$75 \times 4 = 300$$
Exam Strategy & Shortcut
Whenever asked "How many $x$ are in $y$?", immediately calculate $y \times \frac{1}{x}$. Recognizing that dividing by $\frac{1}{8}$ is identical to multiplying by 8 allows you to solve this mentally: $37.5 \times 8 = 300$.
Common Pitfall
A common mistake is reversing the division order (e.g., dividing $\frac{1}{8}$ by $37\frac{1}{2}$), which yields a tiny fraction instead of an integer count. Always ensure the "Total" is the dividend (the number being divided).
Final Answer
Therefore, the correct answer is **300**.