Set Language One Mark Questions

9th Standard

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Maths

Time : 01:00:00 Hrs
Total Marks : 25
    10 x 1 = 10
  1. Which of the following is correct?

    (a)

    {7} ∈ {1,2,3,4,5,6,7,8,9,10}

    (b)

    7 ∈ {1,2,3,4,5,6,7,8,9,10}

    (c)

    7 ∉ {1,2,3,4,5,6,7,8,9,10}

    (d)

    {7} \(\nsubseteq \) {1,2,3,4,5,6,7,8,9,10}

  2. If U ={x | x ∈ N, x < 10} and A = {x | x ∈ N, 2 ≤ x < 6} then (A′)′ is

    (a)

    {1, 6, 7, 8, 9}

    (b)

    {1, 2, 3, 4}

    (c)

    {2, 3, 4, 5}

    (d)

    { }

  3. If B – A is B, then A∩B is

    (a)

    A

    (b)

    B

    (c)

    U

    (d)

  4. If n(A) = 10 and n(B) = 15, then the minimum and maximum number of elements in A ∩ B is

    (a)

    (10,15)

    (b)

    (15,10)

    (c)

    (10,0)

    (d)

    (0,10)

  5. The set does not have a proper subset is __________

    (a)

    Finite set

    (b)

    Infinite set

    (c)

    Null set

    (d)

    Singleton set

  6. Sets having the same number of elements are called ___________

    (a)

    overlapping sets

    (b)

    disjoints sets

    (c)

    equivalent sets

    (d)

    equal sets

  7. The set (A - B) U(B - A) is ___________

    (a)

    AΔB

    (b)

    AUB

    (c)

    A∩B

    (d)

    A'UB'

  8. The set of (A U B) - (A ก B) is ____________

    (a)

    (AUB)'

    (b)

    AΔB

    (c)

    (A∩B)'

    (d)

    A'UB'

  9. The set {x: x ∈ A, x ∈ B, x ∉ A ∩ B} is___________.

    (a)

    A ∩ B

    (b)

    A U B

    (c)

    A - B

    (d)

    A Δ B

  10. The number of elements of the set {x : x ∈ Z, x2 = I} is ________

    (a)

    0

    (b)

    1

    (c)

    2

    (d)

    3

  11. 10 x 1 = 10
  12. Consider the set A = {Ashwin, Muralivijay , Vijay Shankar, Badrinath }.
    Fill in the blanks with the appropriate symbol \(\in \) or \(\notin \).
    Ashwin ______ A.

    ()

    Ashwin \(\in \) A.

  13. Consider the set A = {Ashwin, Muralivijay , Vijay Shankar, Badrinath }.
    Fill in the blanks with the appropriate symbol \(\in \) or \(\notin \).
    Ganguly _____ A.

    ()

    Ganguly \(\notin \) A.

  14. Consider the set A = {Ashwin, Muralivijay , Vijay Shankar, Badrinath }.
    Fill in the blanks with the appropriate symbol \(\in \) or \(\notin \).
    Tendulkar _____ A.

    ()

    Tendulkar \(\notin \) A

  15. Consider the following sets A = {0, 3, 5, 8}, B = {2, 4, 6, 10} and C = {12, 14,18, 20}.
    3\(\in \) ______ 

    ()

    A

  16. Consider the following sets A = {0, 3, 5, 8}, B = {2, 4, 6, 10} and C = {12, 14,18, 20}.
    4 _____ B.

    ()

    \(\in \)

  17. A is a proper subset of B, then A U B = ______________

    ()

    B

  18. If A ⊆ B, then A - B is __________

    ()

    Ø

  19. Sets having atleast one element in common are called ___________

    ()

    overlapping sets

  20. If n(A) = 50, n(B) = 35, n(A ⋂ B) = 5, then n(A U B) is equal to

    ()

    80

  21. If A and B are two finite sets such that n(A - B) = 30, n(A UB) = 180, then n(B) is ___________

    ()

    150

  22. 5 x 1 = 5
  23. Consider the following sets A = {0, 3, 5, 8}, B = {2, 4, 6, 10} and C = {12, 14,18, 20}.
    18 \(\in \)C

    (a) True
    (b) False
  24. Consider the following sets A = {0, 3, 5, 8}, B = {2, 4, 6, 10} and C = {12, 14,18, 20}.
    6 \(\notin \)A

    (a) True
    (b) False
  25. Consider the following sets A = {0, 3, 5, 8}, B = {2, 4, 6, 10} and C = {12, 14,18, 20}.
    14\(\in \)C

    (a) True
    (b) False
  26. Consider the following sets A = {0, 3, 5, 8}, B = {2, 4, 6, 10} and C = {12, 14,18, 20}.
    5\(\in \)B

    (a) True
    (b) False
  27. Consider the following sets A = {0, 3, 5, 8}, B = {2, 4, 6, 10} and C = {12, 14,18, 20}.
    0\(\in \)B

    (a) True
    (b) False

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