9th Standard Maths English Medium Free Online Test 1 Mark Questions 2020 - 2021 Part - Three

9th Standard

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Maths

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

    Part A

    15 x 1 = 15
  1. If A∪B = A∩B, then

    (a)

    A ≠ B

    (b)

    A = B

    (c)

    A ⊂ B

    (d)

    B ⊂ A

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

    (a)

    0

    (b)

    1

    (c)

    2

    (d)

    3

  3. If \(\frac { 1 }{ 7 } \)= 0.142857, then the value of is______________.

    (a)

    0.285741

    (b)

    0.428571

    (c)

    0.285714

    (d)

    0.574128

  4. Which one of the following is not a rational number?

    (a)

    \(\sqrt { \frac { 8 }{ 18 } } \)

    (b)

    \(\frac { 7 }{ 3 } \)

    (c)

    \(\sqrt{0.01}\)

    (d)

    \(\sqrt{13}\)

  5. The degree of the polynomial \( \sqrt { 2 } { x }^{ 2 }-\frac { 7 }{ 2 } { x }^{ 4 }+x-5x^{ 3 }\quad is\)_____________________

    (a)

    2

    (b)

    3

    (c)

    4

    (d)

    5

  6. Which of the following has x -1 as a factor?

    (a)

    2x -1

    (b)

    3x -3

    (c)

    4x -3

    (d)

    3x -4

  7. The linear equation in one variable is

    (a)

    2x + 2 = y

    (b)

    5x − 7 = 6 − 2x

    (c)

    2t(5 − t) = 0

    (d)

    7p − q = 0

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

    (a)

    rhombus

    (b)

    trapezium

    (c)

    square

    (d)

    rectangle

  9. AD is a diameter of a circle and AB is a chord If AD = 30 cm and AB = 24cm then the distance of AB from the centre of the circle is

    (a)

    10cm

    (b)

    9cm

    (c)

    8cm

    (d)

    6cm

  10. The mean of a set of numbers is \(\bar X\). If each number is multiplied by z, the mean is

    (a)

    \(\bar X + z\)

    (b)

    \(\bar X-z\)

    (c)

    z\(\bar X\)

    (d)

    \(\bar X\)

  11. Let be the mid point and b be the upper limit of a class in a continuous frequency distribution.The lower limit of the class is

    (a)

    2m-b

    (b)

    2m+b

    (c)

    m-b

    (d)

    m-2b

  12. The mean of the first 10 whole number is

    (a)

    4

    (b)

    4.5

    (c)

    5

    (d)

    5.5

  13. The value of tan1°.tan2°.tan3°...tan89° is

    (a)

    0

    (b)

    1

    (c)

    2

    (d)

    \(\frac { \sqrt { 3 } }{ 2 } \)

  14. If the ratio of the sides of two cubes are 2:3, then ratio of their surface areas will be

    (a)

    4 : 6

    (b)

    4 : 9

    (c)

    6 : 9

    (d)

    16 : 36

  15. A particular result of an experiment is called

    (a)

    Trial

    (b)

    Simple event

    (c)

    Compound event

    (d)

    Outcome

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