JEE Questions for Maths Sets Relations And Functions Quiz 9 - MCQExams.com


Maths-Sets Relations and Functions-50168.png
  • 1
  • -1
  • 0
  • 3
f(x) = max {2 - x, 2 + x, 4} x ϵ R is

  • Maths-Sets Relations and Functions-50170.png
  • 2)
    Maths-Sets Relations and Functions-50171.png

  • Maths-Sets Relations and Functions-50172.png

  • Maths-Sets Relations and Functions-50173.png

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  • Maths-Sets Relations and Functions-50176.png
  • 2)
    Maths-Sets Relations and Functions-50177.png

  • Maths-Sets Relations and Functions-50178.png

  • Maths-Sets Relations and Functions-50179.png

Maths-Sets Relations and Functions-50181.png

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  • 2)
    Maths-Sets Relations and Functions-50183.png

  • Maths-Sets Relations and Functions-50184.png

  • Maths-Sets Relations and Functions-50185.png

Maths-Sets Relations and Functions-50187.png
  • x
  • 1
  • f(x)
  • g(x)

Maths-Sets Relations and Functions-50189.png

  • Maths-Sets Relations and Functions-50190.png
  • 2)
    Maths-Sets Relations and Functions-50191.png

  • Maths-Sets Relations and Functions-50192.png

  • Maths-Sets Relations and Functions-50193.png

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  • 8
  • 4
  • -8
  • 11

Maths-Sets Relations and Functions-50197.png
  • 4x
  • 2x
  • 4[x] + 100{x}
  • x

Maths-Sets Relations and Functions-50199.png
  • x3 - x2 + x - 5
  • x3 - 9x2 + 26x + 22
  • x3 + 9x2 - 26x + 5
  • x3 + x2 - x + 5
Which of the following relation is one-one
  • R1 = {(x,y) / x1 + y2 = 1, x, y ϵ R}
  • R2 = {(x, y) / y = ex2 / x, y ϵ R}
  • R3 = {(x,y) / y = x2 - 3x + 3, x, y ϵ R}
  • None of these

Maths-Sets Relations and Functions-50201.png

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  • 2)
    Maths-Sets Relations and Functions-50203.png

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  • Maths-Sets Relations and Functions-50205.png

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  • Maths-Sets Relations and Functions-50208.png
  • 2)
    Maths-Sets Relations and Functions-50209.png

  • Maths-Sets Relations and Functions-50210.png

  • Maths-Sets Relations and Functions-50211.png
If A = {(x,y) / x2 + y2 = 25} and B {(x,y) / x2 + 9y2 = 144 } then A ∩ B contains
  • two points
  • one points
  • three points
  • four points
If A and B are two sets then B - (B - A) =....
  • (A - B) - B
  • A - (A - B)
  • A
  • B
For two events A and B which of the following is simple expression of (A ∩ B) ∪ (A ∩ B\') ∪ (A\' ∩ B) ?
  • A ∩ B
  • A ∪ B
  • A' ∩ B'
  • A ∩ B'

Maths-Sets Relations and Functions-50216.png

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  • 2)
    Maths-Sets Relations and Functions-50218.png

  • Maths-Sets Relations and Functions-50219.png

  • Maths-Sets Relations and Functions-50220.png
Which of the following is the empty set ?
  • {x : x is a real number and x2 – 1 = 0}
  • {x : x is a real number and x2 + 1 = 0}
  • {x : x is a real number and x2 – 9 = 0}
  • {x : x is a real number and x3 = x + 2}
The set A = {x : x ϵ R, x2 = 16 and 2x = 6} equals
  • Ø
  • {14, 3, 4}
  • {3}
  • {4}
If set of A has n elements, then the total number of subsets of A is
  • n
  • n2
  • 2n
  • 2n
The number of proper subsets of the set {1,2,3} is
  • 8
  • 7
  • 6
  • 5
Given the sets A = {1,2,3}, B = {3, 4}, C = {4, 5, 6} then A ∪ (B ∩ C) is
  • {3}
  • {1,2,3,4}
  • {1,2,4,5}
  • {1,2,3,4,5,6}
If A and B are any two sets , then A ∪ (A ∩ B) is equal to
  • A
  • B
  • Ac
  • Bc

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  • 2)
    Maths-Sets Relations and Functions-50230.png

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  • Maths-Sets Relations and Functions-50235.png
  • 2)
    Maths-Sets Relations and Functions-50236.png

  • Maths-Sets Relations and Functions-50237.png
  • None of these

Maths-Sets Relations and Functions-50239.png

  • Maths-Sets Relations and Functions-50240.png
  • 2)
    Maths-Sets Relations and Functions-50241.png

  • Maths-Sets Relations and Functions-50242.png
  • None of these

Maths-Sets Relations and Functions-50244.png

  • Maths-Sets Relations and Functions-50245.png
  • 2)
    Maths-Sets Relations and Functions-50246.png

  • Maths-Sets Relations and Functions-50247.png

  • Maths-Sets Relations and Functions-50248.png

Maths-Sets Relations and Functions-50250.png
  • X
  • Y
  • N
  • None of these

Maths-Sets Relations and Functions-50252.png
  • 400
  • 600
  • 300
  • 200
In a town of 10,000 families it was found that 40% family but newspaper A, 20% families buy newspaper B and 10% families buy newspaper C, 5% families buy A and B, 3% buy B and C and 4% buy A and C. If 2% families buy all the three newspapers, then number of families which buy A only is
  • 3100
  • 3300
  • 2900
  • 1400
In a city 20% of the population travels by car, 50% travels by bus and 10% travels by both car and bus. Then persons travelling by car or bus is
  • 80%
  • 40%
  • 60%
  • 70%
In a class of 55 students, the number of students studying different subjects are 23 in Mathematics, 24 in physics, 19 in chemistry, 12 in Mathematics and physics, 9 in Mathematics and chemistry, 7 in physics and chemistry and 4 in all the three subjects. The number of students who have taken exactly on subject is
  • 6
  • 9
  • 7
  • None of these

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  • 2)
    Maths-Sets Relations and Functions-50259.png

  • Maths-Sets Relations and Functions-50260.png
  • None of these
If two sets A and B are having 99 elements in common, then the number of elements common to each of the sets A × B and B × A are
  • 299
  • 992
  • 100
  • 18
  • 9

Maths-Sets Relations and Functions-50262.png
  • 5
  • 7

  • Maths-Sets Relations and Functions-50263.png

  • Maths-Sets Relations and Functions-50264.png

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  • 2)
    Maths-Sets Relations and Functions-50268.png

  • Maths-Sets Relations and Functions-50269.png

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If the set A has P elements,B has q elements then the number of elements in A ×B is
  • p + q
  • p + q + 1
  • p q
  • p2
If A = {a,b}, B = (c,d), C = {d,e}, then {(a,c),(a,d),(a,e),(b,c),(b,d),(b,e) } is equal to

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  • 2)
    Maths-Sets Relations and Functions-50274.png

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Maths-Sets Relations and Functions-50278.png
  • One - one and onto
  • onto but not one - one
  • one - one but not onto
  • neither one - one nor onto
A = {x ∶ x ≠ x} represents
  • {0}
  • {}
  • {1}
  • {x]

Maths-Sets Relations and Functions-50280.png
  • 0 ϵ Q
  • 1 ϵ Q
  • 2 ϵ Q

  • Maths-Sets Relations and Functions-50281.png
Which set is the subset of all given sets?
  • {1,2,3,4,...}
  • {1}
  • {0}
  • {}

Maths-Sets Relations and Functions-50283.png
  • 2
  • 4
  • 6
  • 8
  • 10
The number of non - empty subsets of the set {1, 2,3,4} is
  • 15
  • 14
  • 16
  • 17

Maths-Sets Relations and Functions-50286.png
  • {2,3,5}
  • {3,5,9}
  • {1,2,5,9]
  • None of these

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  • 2)
    Maths-Sets Relations and Functions-50290.png

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  • Maths-Sets Relations and Functions-50295.png
  • 2)
    Maths-Sets Relations and Functions-50296.png

  • Maths-Sets Relations and Functions-50297.png
  • None of these
Let A and B be two sets. Then

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  • 2)
    Maths-Sets Relations and Functions-50300.png

  • Maths-Sets Relations and Functions-50301.png
  • None of these
For any two sets A and B, A – (A – B) equals
  • B
  • A – B
  • A ∩ B
  • Ac ∩ Bc
Let X and Y be the sets of all positive divisors of 400 and 1000 respectively (including 1 and the number). Then n(X ∩ Y) =
  • 4
  • 6
  • 8
  • 12

Maths-Sets Relations and Functions-50305.png
  • 6
  • 9
  • 8
  • 10
0:0:1


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