Question

A swimming team consist of 18 members,each member performs in atleast one of the three events,freestyle backstrokje and diving.Each diver also races.Eleven of the team swim freestyle and ten swim backstroke.Two of the team swim backstroke and dive,but do not swim freestyle.Five of the team swim freestyle only,and seven of those who swim backstroke do not dive.Draw a Venn Diagram and find
a) n (D)

Answer 1

1. swimming team 18

2.eacher members performedswimming team 18

3.so 18×3=54