9th Standard Maths English Medium Free Online Test Book Back 1 Mark Questions with Answer Key Part - 3

9th Standard

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Maths

Time : 00:10:00 Hrs
Total Marks : 10

    Part A

    10 x 1 = 10
  1. The shaded region in the adjacent diagram represents

    (a)

    (A∪B)′

    (b)

    (A∩B)′

    (c)

    A′∩B′

    (d)

    A∩B

  2. If n is a natural number then \(\sqrt { n } \) is

    (a)

    always a natural number

    (b)

    always an irrational number

    (c)

    always a rational number

    (d)

    may be rational or irrational

  3. x3 – x2 is a …………..

    (a)

    monomial

    (b)

    binomial

    (c)

    trinomial

    (d)

    constant polynomial

  4. If bisectors of ∠A and ∠B of a quadrilateral ABCD meet at O, then ∠AOB is

    (a)

    ∠C + ∠D

    (b)

    \(\frac { 1 }{ 2 } (\angle C+\angle D)\)

    (c)

    \(\frac { 1 }{ 2 } \angle C+\frac { 1 }{ 3 } \angle D\)

    (d)

    \(\frac { 1 }{ 3 } \angle C+\frac { 1 }{ 2 } \angle D\).

  5. On plotting the points O(0,0), A(3, – 4), B(3, 4) and C(0, 4) and joining OA, AB, BC and CO, which of the following figure is obtained?

    (a)

    Square

    (b)

    Rectangle

    (c)

    Trapezium

    (d)

    Rhombus

  6. The mean of a,b,c,d and e is 28. If the mean of a, c and e is 24, then mean of b and d is

    (a)

    24

    (b)

    36

    (c)

    26

    (d)

    34

  7. If cos A = \(\frac { 3 }{ 5 } \), them the value of tan A is

    (a)

    \(\frac { 4 }{ 5 } \)

    (b)

    \(\frac { 3 }{ 4 } \)

    (c)

    \(\frac { 5 }{ 3 } \)

    (d)

    \(\frac { 4 }{ 3 } \)

  8. If the lateral surface area of a cube is 600 cm2, then the total surface area is

    (a)

    150 cm2

    (b)

    400 cm2

    (c)

    900 cm2

    (d)

    1350 cm2

  9. If A is any event in S then its complement P(A′) is equal to

    (a)

    1

    (b)

    0

    (c)

    1-A

    (d)

    1-P(A)

  10. A particular result of an experiment is called

    (a)

    Trial

    (b)

    Simple event

    (c)

    Compound event

    (d)

    Outcome

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