Question

74. Out of 50 people surveyed who drink atleast one of the 2 drinks coffee or tea, 20 people drink tea, 10 take both tea and coffee. The number of people who drink coffee only is
(A) 10
(B) 30
(C) 40
(D) 20

Answer 1

Answer:

20

Explanation:

because then only it's total will be 50

Answer 2

Answer:

(D)20

Explanation:

coz..there r 50 people in total. 20 people consume tea. and 10 people consume both tea and coffee. so, here, from the 2nd statement we can see that both coffee and tea are drank by 10 people.

20+10+x=50

30+x=50

x=50-30

x=20

therefore,20 people only drink coffee