A school sports team contain 68 students.33 do field events, 40 do track events,23 do...
A school sports team contain 68 students.33 do field events, 40 do track events,23 do...
A school sports team contain 68 students.33 do field events, 40 do track events,23 do swimming,14 do both field and track events,8 do both swimming and field events. If 15 students do field events only,and 10 do both swimming and track events, how many students do c. All three events?
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