Practice Test

Q1) The set of intelligent students in a class is Show Answer

Q2) Which of the following is the empty set?

Show Answer

Q3) In a city 20 percent of the population travels by car, 50 percent travels by bus and 10 percent travels by both car and bus. Then persons travelling by car or bus is Show Answer

Q4) Which set is the subset of all given sets Show Answer

Q5) If a set A has n elements, then the total number of subsets of A is Show Answer

Q6) Of the members of three athletic teams in a school 21 are in the cricket team, 26 are in the hockey team and 29 are in the football team. Among them, 14 play football and cricket, 15 play hockey and football, and 12 play football and cricket. Eight play all the three games. The total number of members in the three athletic teams is Show Answer

Q7) If A = { x, y} , then the power set of A is Show Answer

Q8) In a city 20% of the population travels by car, 50% travels by bus and and 10% travels by both car and bus. Then, persons traveling by car or bus are _____. Show Answer

Q9) The relation “>” in the set N (Natural number) is _____. Show Answer

Q10) A relation between A and B is Show Answer

Q11) If A = {a, b, c, d} , then which of the following statements is false? Show Answer

Q12) Which of the following is an infinite set? Show Answer

Q13) If A = {1, 2, 3, 4, 5}, B= {3, 4, 5, 6 ,7, 8} then the number of elements in power set of B – A is Show Answer

Q14) The relation ">" in the set N ( natural number) is Show Answer

Q15) The set of all real numbers between 1 and 3 is a finite set. Show Answer

Q16) Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} be the universal set.
If A = {2, 3, 4, 6, 8, 10} and B = {6, 7, 8, 9}, then (A- B)’ = {1, 5, 6, 7, 8, 9}.
Show Answer

Q17) In a group of 26 persons, 8 take tea but not coffee and 16 take tea. Then the number of persons taking coffee but not tea is 12. Show Answer

Q18) If A × B = {(3, 2), (3, 4), (5, 2), (5, 4)}, then A = {3, 5} and B = {2, 4}. Show Answer

Q19) If A = {1, 2, 3, 4} and B = {2, 3, 5, 6}, then R ={(1,2), (2,5), (2,4), (4,6)} is a relation from A to B. Show Answer

Q20) Let R be a relation on N defined by 2x + y = 6. Then domain of R is {1,2}. Show Answer