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An Educational platform for Preparation and Practice Class 11. Kidsfront provide unique pattern of learning Maths with free online comprehensive study material in the form of QUESTION & ANSWER for each Chapter of Maths for Class 11. This study material help Class 11, Maths students in learning every aspect of Relations and functions . Students can understand Relations and functions concept easily and consolidate their learning by doing Online Practice Tests on Maths,Relations and functions chapter repeatedly till they excel in Class 11, Relations and functions . Free ONLINE PRACTICE TESTS on Class 11, Relations and functions comprise of Hundreds of Questions on Relations and functions , prepared by the highly professionals team. Every repeat test of Relations and functions will have new set of questions and help students to prepare themselves for exams by doing unlimited Online Test exercise on Relations and functions . Attempt ONLINE TEST on Class 11,Maths,Relations and functions in Academics section after completing this Relations and functions Question Answer Exercise.

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##### If (a, b) =(x, y), then

a) A = x and b = y.
b) A = y and b = x
c) A=0
d) None of the above

##### If A = {4,5} and B = {6,8} then BXA is

a) {(6,4), (6,5), (8,4), (8,5)}
b) {(6,4), (6,5), (8,5)}
c) {5,6,7,8}
d) {4,5,8,6}

##### Let A = {1, 2, 3, …, 30} and R be the relation “is half of” on A. Then the range of R is

a) {2,4,6,8,10,12,14,16,18,20,22,24,26,28,30}
b) {2,4,6,8,10,12,18,20,22,24,26,28,30}
c) {15}
d) None of the above

a) 2^9
b) 2^0
c) 2^6
d) 2^1

##### The two ordered pairs (a, b) and (c, d) are said to be equal if and only if ______

a) A = c and b = d.
b) A = b and c = d.
c) A*b=c*d
d) All of the above

##### If X = {1, 2, 3, 4}, Y = {1, 2, 3,...., 20}, and f: X Y be the correspondence which assigns each element in X the value equal to its square, then the domain, co-domain and range of f is

a) Domain = {1, 2, 3, 4}, Range = {1, 4, 9, 16}, Co domain = {1, 2, 3, ..., 20}
b) Domain = {1, 2, 3, 4}, Range = {1, 4, 9, 16}, Co domain = {1, 2, 3, ..., 16}
c) Domain = {1, 4, 9, 16}, Range = {1, 2, 3, 4}, Co domain = {1, 2, 3, ..., 16}
d) Domain = {1, 2, ..., 20}, Range = {1, 2, 3, 4}, Co domain = {1, 2, 3, 4}

a) The domain
b) The relation
c) The codomain
d) The range

a) x = 10, y=10
b) x=0 ,y=10
c) x = 10, y = 0
d) x=3,y=10

##### If any of the sets A or B is infinite, then A × B is also an ______

a) Orders set
b) Infinite set
c) Empty set
d) None of the above

##### Let A = {1, 2, 3, …, 30} and R be the relation “is one-third of” on A. Then the range of R is

a) {0,3,6,9,12,15,18,21,24,27,30}
b) {3,6,9,12,15,18,21,24,27,30}
c) {3,6,9,12,15,18,21,24,27,30,33}
d) {3,6,9,12,15,21,24,27,30}

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