GRE Problem Solving Question 1069

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There are 32 students in Jamie's eighth-grade class. Each student took a 50-point test; the class average (arithmetic mean) was 82% correct. The teacher has assigned one 4-point, extra-credit question. How many students will need to answer the extra-credit question correctly in order to bring the class average to 86% correct?

  • A 15
  • B 16
  • C 17
  • D All of the students
  • E It will not be possible for the class to reach an average of 86% correct.

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