Solution: (2) Let M denote the number of students who take Mathematics and B denote the number of students who take Biology. n (M) = 45, n (M... View Article
Solution: (3) Let M denote the number of students failed in Mathematics, P denote the number of students failed in Physics and B denote the... View Article
Solution: (1) Let the number of people who like singing be n (S) = 200, who like dancing is n (D) = 110, number of people who like painting = n... View Article
Solution: (1) Let the number of students who prefer mathematics be x and chemistry be y. Given: (10 / 100) x = (12 / 100) y = 30 0.1x = 0.12y... View Article
Solution: (3) The total number of students = n (U) = 60 Number of students who play cricket = n (C) = 25 Number of students who play tennis =... View Article
Solution: (2) Let the number of elements in set A be p and set B be q. The power set of A is P (A) and B is P (B). P (A) has 2p elements and P... View Article
