Question

16. In a group of 52 persons, 16 drink tea but not coffee and 33 drink tea Find (a) how many drink tea and coffee both? (b) how many drink coffee but not tea? l​

Answer 1

Answer:

17

Step-by-step explanation:

Set of persons who drinks tea and coffee both =(A∩B). ⇒(A∩B)=n(A)-n(A-B)=(33-16)=17. thus 17 persons drink tea and coffee both.