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Lê Quốc Trần Anh Coordinator

15/11/2017 at 16:52
Answers
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Seventy-eight students participate in one or more of three sports: baseball, tennis and golf. Four students participate in all three sports. Five students play only baseball and golf. Two students play only tennis and golf. Three students play only baseball and tennis. If seven students play only tennis, and one student plays only golf, what is the total number of students who play only baseball?




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  • ...
    Phan Thanh Tinh Coordinator 15/11/2017 at 23:47

    5 4 3 2 1 7 Baseball tennis Golf

    According to the Venn diagram, the answer is :

    78 - 3 - 7 - 4 - 2 - 5 - 1 = 56 (students)

    Lê Quốc Trần Anh selected this answer.
  • ...
    Bảo Bình 15/11/2017 at 20:17

    The number of students participate in one of three sports is:

                 78-4-5-2-3=64(students)

    The number of students who play only baseball is:

               64-7-1=56(students)

  • ...
    Nguyễn Hưng Phát 16/11/2017 at 12:49

    The number of students participate in one of three sports is:

                 78-4-5-2-3=64(students)

    The number of students who play only baseball is:

               64-7-1=56(students)


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