d Copy and complete
3 A group of 40 people were asked whether they like cricket (C) and
football (F). The number liking both cricket and football was three
times the number liking only cricket. Adding 3 to the number liking
only cricket and doubling the answer equals the number of people
liking only football. Four said they did not like sport at all.
a Draw a Venn diagram to represent this information.
b Calculate n(COF).
c Calculate n(CF).
d Calculate n(C' F).