MATHEMATICS A School sports team contains 68 students,33 do
field events,40 do track events, 23 do
swimming, 14 do both held and track events, 8 ao
both swimming and field events. If 15 students do
field events only, and 10 do both swimming and
track events, how many students do:
(1) swimming only
(2) track events only
(3) all three events​