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A mother is 24 years older than her daughter. In 4 years, the mother will be twice her daughter's age. How old is the daughter now?

Correct answer: B. 20 years

  • A. 18 years
  • B. 20 years
  • C. 22 years
  • D. 24 years

Explanation

Let the daughter's current age be x. In four years, the equation is x plus 28 equals 2 times x plus 4, giving x equals 20.

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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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