Adam and Betty purchased a printer together for $258. If Adam paid $18 less than twice of what Betty paid, how much money did Adam pay for the printer?
Correct answer: B. 166
- A. 172
- B. 166
- C. 158
- D. 146
Explanation
To solve this problem, set up two equations based on the given information: Adam's payment as x and Betty's payment as y. The equations are x + y = 258 and x = 2y - 18. By solving these equations simultaneously, it is found that Adam pays $166 for the printer. The incorrect options resulted from miscalculations or misinterpretation of the equations.
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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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