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Asked in Maths and Science Reasoning Mock

If x =2 and y =5 then 4x+9y =

Correct answer: C. 53

  • A. 48
  • B. 29
  • C. 53
  • D. 40

Explanation

To solve the equation 4x + 9y when x = 2 and y = 5, substitute the values into the equation: 4(2) + 9(5). This simplifies to 8 + 45, which equals 53. Therefore, the correct answer is 53 (Option C). Options A, B, and D result from incorrect calculations, such as errors in multiplication or addition.

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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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