GMAT 考满分题库

The 7th grade French and Spanish classes each have 15 students in them, and there are five students in the 7th grade taking both languages. If everyone in the 7th grade is in at least one of the two language classes, how many students are taking just one of the two classes?
  • A5
  • B10
  • C15
  • D20
  • E25
正确答案: D

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