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In this article find Online test of Sets Relation and Functions. In IIT JEE, UPSEE, WBJEE and other engineering entrance examinations, this chapter plays an important role. About 2-3 questions are being asked from this chapter.
Q. if A = {p, q, r, s} and B = {7, 8, 9}, find which of the following is a set of ordered pair are relations from A to B?
(a) R = {(7, p), (9, p)}
(b) R = {(p, 7), (r, 8), (s, 7)}
(c) R = {(7, s), (8, q), (r, 9)}
(d) R = {(8, s), (9, q)}
Q. In an international conference of 200 people there are 53 Indian women and 39 Indian men. Of these Indian people 7 are doctors and 42 are either men or doctors. There are no foreign doctors. How many women doctors are attending the conference?
(a) 1
(b) 2
(c) 3
(d) 4
Q. In a sports hostel, 21 are in the baseball team, 26 are in hockey team and 29 are in the football team. 14 play hockey and baseball, 15 play hockey and football and 8 play all the three games. How many total no of players are there?
(a) 43
(b) 37
(c) 44
(d) 52
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