There are 40 students in a school. 19 students like to play card, 27 students like to play chess...
Which of the following two sets are disjoint? (A) {2, 5, 7} and {2, 8, 9} (B) {11, 17,...
Which of the following is universal set for {a, i, u, e, z}? (A) set of vowels (B) set...
Let A = {3, 5}, B = {1, 2, 4}, and C = {7, 8, 11}. Which of the...