A survey of 850 students in a university yield that 680 students like music and 215 like dance. What is the least number of students who like both music and dance?
If a set A contains 4 elements, then what is the number of elements in A x P (A) ?
Let S be a set of all distinct numbers of the form p/q , where p, q e {1,2,3,4,5,6}. What is the cardinality of set S?
Let A = { -1, 2, 5, 8}, B = { 0,1, 3, 6, 7} and R be the relation ‘is one less than’ from A to B, then how many elements will R contain?
Question is mentioned below :
If A = {1, 2, 3, 4} and B = {5, 6, 7, 8}, then number of relations from A to B is equal to
If A = {1, 2, 5, 6} and B = {1, 2, 3}, then what is (A x B)n(B x A) equal to?
If A = (x : x is a multiple of 2}, B = (x : x is a multiple of 5} and C= {x : x is a multiple of 10}, then A ∩ (B ∩ C) is equal to
Which of the following relation is not a function?
If f (x) = ax + b, where a and b are integers, f (–1) = – 5 and f (3) = 3, then a and b are equal to
