If 2a/b = 1/2, what is the value of b/a?
Correct answer: D. 4
- A. 1/8
- B. 1/4
- C. 2
- D. 4
Explanation
Choice D is correct. Dividing both sides of equation 2a/b = 1/2 by 2 gives a/b = 1/4. Taking the reciprocal of both sides yields b/a = 4.
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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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