Tea and coffee are ______ crops.

In a conference attended by 550 delegates tea and coffee are served. The number of delegates who drink tea is 400 and the number of delegents who drink tea only is 200 . Find (a) how many of them drink coffee, (b) how many drink coffee only.

In a group of 100 persons 85 take tea 20 take coffee and 25 take tea and coffee . Number of persons who take neither tea nor coffee is

Parasitic alga is-Tea and Coffee leaves are infected by

In a group of 500 persons,300 take tea,150 take coffee,250 take cold drink,90 take tea and coffee,110 take tea and cold drink,80 take coffee and cold drink,and 30 take none of the three drinks.Find the number of person who take all the three drinks.

In a class 30% students like tea, 20% like coffee and 10% like both tea and coffee. A student is selected at random then what is the probability that he does not like tea if it is known that he likes coffee?