GRE Math Quantitative Comparisons Question 636

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The average (arithmetic mean) of 9 numbers is 90. The average (arithmetic mean) of the first 5 0f these numbers is 50.

Quantity A

The average (arithmetic mean) of the last 4 numbers

Quantity B


  • A Quantity A is greater.
  • B Quantity B is greater.
  • C The two quantities are equal.
  • D The relationship cannot be determined from the information given.

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