1. 3.(a) In a survey of a school, 300 students favour to play volleyball, 250 favour to play cricket and 110 favour both of the games. Draw a Venn-diagram and calculate the number of students who play cricket only ii. the number of students who play either volleyball or cricket (b) in a survey, after their SEE, 190 students wanted to be an engineer, 160 wanted to be a doctor and 120 wanted to be both. If 300 students were interviewed, draw a Venn-diagram and find the number of students who wanted to be neither of them (c ) in a survey of 120 adults, 88 drink cold drinks and 26 deink soft drink if 17 of them drink neither of them, find out the number of adults who drink both cold and soft drink by using a Venn-diagram,​