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Source: OG11th

Level: 4

Of the 200 students at College T majoring in one or more of the sciences, 130 are majoring in chemistry and 150 are majoring in biology. If at least 30 of the students are not majoring in either chemistry or biology, then the number of students majoring in both chemistry and biology could be any number from

  • A 20to50
  • B 40to70
  • C 50to130
  • D 110to130
  • E 110to150

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