1. In a class of 140 students, 70 students like tea, 50 students like coffee, 40 students don't like both.
i. Find the number of students who like at least one drink.
ii. Find the number of students who like both tea and coffee.
2. A survey conducted among 600 students of a school, the following information is found in which 420 like football games, 300 like volleyball game and 560 like at least one of the game.
i. Find the number of students who don't like both games.
ii. Find the number of students who like both games.
3.In a survey of 80 people, 20 liked mango only, 25 liked apple only and 5 did liked any fruits, then:
i. Find the number of people to like both the fruits.
ii. Find the number of people who like mango.
iii. Find the number of people who like apple.
iv. Represent the above information in a Venn-diagram.
4.In a group of 60 students, 10 students liked ice-cream but not cold drink and 20 students liked cold drink but not ice-cream. 5 students did not like both.
i. How many students liked both?
ii. Find the number of students who like ice-cream.
iii. Find the number of students who like cold drink.
iv. Represent the above information in a Venn-diagram. ​