9th Standard Maths English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 3

9th Standard

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Maths

Time : 00:15:00 Hrs
Total Marks : 15

    Part A

    15 x 1 = 15
  1. Which of the following is correct?

    (a)

    ∅ ⊆ {a, b}

    (b)

    ∅ ∈ {a, b}

    (c)

    {a} ∈ {a, b}

    (d)

    a ⊆ {a, b}

  2. For any three A,B and C,\(A-\left( B\cup C \right) \)

    (a)

    (A-B)\(\cup \)(A-C)

    (b)

    (A-B)\(\cap \)(A\(\cup \)C)

    (c)

    (A-B)\(\cup \)C

    (d)

    A\(\cup \)(B-C)

  3. Which one of the following has a terminating decimal expansion?

    (a)

    \(\frac { 5 }{ 64 } \)

    (b)

    \(\frac { 8 }{ 9 } \)

    (c)

    \(\frac { 14 }{ 15 } \)

    (d)

    \(\frac { 1 }{ 12 } \)

  4. Which of the following are not rational numbers?

    (a)

    \(7\sqrt { 5 } \)

    (b)

    \(\frac { 7 }{ \sqrt { 5 } } \)

    (c)

    \(\sqrt { 36 } -9\)

    (d)

    \(\pi +2\)

  5. Which is the best example of a number written in scientific notation?

    (a)

    0.5 x 105

    (b)

    0.1254

    (c)

    5.367 x 10-6

    (d)

    12.5 x 102

  6. The product of the polynomials p(x) = 4x –3 q(x) = 4x + 3

    (a)

    1 – x – 8

    (b)

    16x2 – 9

    (c)

    18x3 + 12x2 – 12x – 8

    (d)

    18x3 – 12x2 + 12x + 8

  7. if a polynominal p(x) is divided by (ax+b), then the reminder is _______________________

    (a)

    \(p\left( \frac { b }{ a } \right) \)

    (b)

    \(p\left( -\frac { b }{ a } \right) \)

    (c)

    \(p\left( \frac { a }{ b } \right) \)

    (d)

    \(p\left( -\frac { a }{ b } \right) \)

  8. Find the value of m from the equation 2x + 3y = m. If its one solution is x = 2 and y = −2 .

    (a)

    2

    (b)

    -2

    (c)

    10

    (d)

    0

  9. 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)

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

  10. Diagonal of which of the following quadrilaterals do not bisect it into two congruent triangles?

    (a)

    rhombus

    (b)

    trapezium

    (c)

    square

    (d)

    rectangle

  11. The point M lies in the IV quadrant. The coordinates of M is _______

    (a)

    (a,b)

    (b)

    (–a, b)

    (c)

    (a, –b)

    (d)

    (–a, –b)

  12. The algebraic sum of the deviations of a set of n values from their mean is

    (a)

    0

    (b)

    n-1

    (c)

    n

    (d)

    n+1

  13. The value of 3sin700sec200 + 2sin490sec510 is

    (a)

    2

    (b)

    3

    (c)

    5

    (d)

    6

  14. The total surface area of a cuboid is

    (a)

    4a2 sq. units

    (b)

    6a2 sq. units

    (c)

    2(l + b)h sq. units

    (d)

    2(lb + bh + lh) sq. units

  15. Which of the following cannot be taken as probability of an event?

    (a)

    0

    (b)

    0.5

    (c)

    1

    (d)

    -1

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