Question

In a survey of 500 people it was found that 200 like cricket , 250 like hokey , 240 like tennis , 100 like both cricket and hockey , 80 play both hockey and tennis , 70 like both cricket and tennis , 40 like all the three , then find no. of people (i)who don't like any sports (ii) who like exactly two sports

Answer 1

Answer:

Step-by-step explanation:

A = set of people who liked cricket

B = set of people who liked hockey

C = set of people who liked tennis

U = people who took part in survey

n(A) = 200, n(B) = 250, n(C) = 240, n(A∪B) = 100, n(B∪C) = 80, n(A∪C) = 70

, (A∪B∪C) = 40