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Source: OG11th

Level: 3

In a certain calculus class, the ratio of the number of mathematics majors to the number of students who are not mathematics majors is 2 to 5.if 2 more mathematics majors were to enter the class the ratio would be 1 to 2. How many students are in the class

  • A 10
  • B 12
  • C 21
  • D 28
  • E 35

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