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ISEE Upper Level
Quantitative Reasoning

Impact of Temperature Change on Average

Very Hard Quantitative Comparisons Data Interpretation

In a certain town, the average monthly temperatures (in degrees Fahrenheit) for four consecutive months were recorded as follows:

  • Month 1: 52
  • Month 2: 56
  • Month 3: 54
  • Month 4: 58

If the temperature of Month 3 increases by 'x' degrees and the temperatures for Month 1, Month 2, and Month 4 remain unchanged, what is the impact on the average temperature of these four months? The new average temperature can be expressed as:

$$ ext{New Average} = rac{52 + 56 + (54 + x) + 58}{4} $$

Which of the following statements is true regarding the new average temperature in comparison to the original average temperature of these four months?

Hint

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