maths ONLINE TEST 0% 10th Mathematics – Chapter -1- Sets, Relations and Functions – Ex 1.1, 1.2, 1.3 Wish you all the Best ! 1 / 25 If the ordered pairs (a +2, 4) and (5,2a +b)are equal then (a,b) is? (5,1) (3, –2) (2, –2) (2,3) 2 / 25 B = {x/x is a prime number less than 10}, then B is? {2, 3, 5, 7} {2, 3, 5} [2, 3, 5, 7, 9} {2, 5, 7} 3 / 25 Ordered pairs are {(2, 4), (3, 5), (5, 8), (6, 7)} then wrik the domain? -{2, 3, 4, 5} {2, 3, 5, 7} {4, 5, 8, 7} {2, 3, 5, 6} 4 / 25 Every element in pre – image has a uniqque image, then the function is? one to many None many to one one to one 5 / 25 The range of the relation R = {(x,x²) | x is a prime number less than 13} is? {2, 3, 5 ,7} {4, 9, 25, 49, 121} {2, 3, 5, 7, 11} {1, 4, 9, 25, 49, 121} 6 / 25 If f = {(2, 4), (3, 5), (6, 6)}, is this relation a function? no yes None null relation 7 / 25 If n(A) = 4 and n(B) = 3, then n(A x B) ______? 20 4 12 3 8 / 25 If f(x) = 2x – 3 then find (f(0) + f(1)) / 2 is_____? zero -1 -2 -4 9 / 25 If f(x) = 3x – 2x then find x; f(x²) = (f(x)²)? 5 2 1 3 10 / 25 When will A x B be equal to B x A? A ≠ B A > B A = B A < B 11 / 25 If n(A×B) = 6 and A = {1, 3} then n(B) is? 3 2 1 6 12 / 25 If n(A x B) = 20 and n(A) = 5, then n(B) is ____? 5 20 3 4 13 / 25 If A = {2, 3, 4} and B = {3, 4, 5} then A – B is____? {2, 3, 4, 5} {2, 5} {2} {3, 4} 14 / 25 If A = {m, n} and B = { }, then A x B is? { } {m} {m, n} {n} 15 / 25 A relation which contains no element is called a? None Empty set Null relation One to one relation 16 / 25 If A = {2, 3} and B = {3, 4, 5} then A U B is _____? {2, 3, 3, 4, 5} {2, 3, 5} {2, 4, 5} {2, 3, 4, 5} 17 / 25 Formula to find out number of relations? 2q Qᴾ 2^pq 2ᴾ 18 / 25 Is 1 a prime number? no Nor Yes 19 / 25 If there are 1024 relations from a set A = {1, 2, 3, 4, 5} to a set B, then the number of elements in B is? 2 3 4 8 20 / 25 If f(x) = x² + 2 then f(2) is? 8 4 2 6 21 / 25 Let A = {3, 4, 7, 8} and B = {1, 7, 10}. Which of the following sets are relations from A to B? R₁ = {(3, 7), (4, 7), (7, 10), (8, 1)} Both R₁ ⊆ A x B none R₁ ∉ A x B 22 / 25 If A = {1,2}, B = {1,2, 3, 4},C = {5,6} and D = {5, 6, 7, 8} then state which of the following statement is true? (D×A) ⊂ (B×A) (A×C) ⊂ (B×D) (B×D) ⊂ (A×C) (A×B) ⊂ (A×D) 23 / 25 A = {2, 3} and B = {4, 5} then A x B is _______? {(2,4), (2, 5), (3,4), (3,5)} {(2,4), (2,6), (3, 4), (3,5)} {(2,5), (4, 2), (3, 4), (5, 3)} {(2, 4), (5, 3), (4, 3), (2, 5)} 24 / 25 A = {a,b, p}, B = {2, 3}, C = {p,q,r,s} then n[(A U C)×B] is 16 12 8 20 25 / 25 C = {set of even prime number}, then c is? {4} {8} {2} {2, 4} Your score is 0% Note:Once you start the test, you are not allowed to go back. Results won’t be generated if you quit the test.Complete the test within the given time. Once the time is over, the test will be submitted automatically.You can verify your answers at the result page.
