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Magoosh - 数学PS - 235
In Dewey Elementary School, there are two second-grade classes: class A has 35 students and class B has 45 students. If 40% of the students in class A walk to school, and 80% of the students in class B walk to school, what percent of all the students in the second-grade at Dewey Elementary walk to school?
  • A40%
  • B42.5%
  • C60%
  • D62.5%
  • E75%
正确答案: D

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