The result of increasing the quantity x by 400% is 60. What is the value of x?
Correct answer: A. 12
- A. 12
- B. 15
- C. 240
- D. 340
Explanation
Choice A is correct. It's given that the result of increasing the quantity x by 400% is 60. This can be written as x+ (400/100)x = 60, which is equivalent to x + 4x = 60, or 5x = 60. Dividing each side of this equation by 5 yields x = 12. Therefore, the value of x is 12.
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About Quantitative Reasoning
Quantitative reasoning applies arithmetic and basic algebra to numerical relationships, including percentages, ratios, averages, fractions, proportions, profit and loss, rates, time, work and measurement. Questions focus on translating words into equations, choosing an efficient method and checking whether the result is numerically reasonable.
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