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

9th Standard

    Reg.No. :
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Maths

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

    Part A

    15 x 1 = 15
  1. If A = {x, y, z} then the number of non - empty subsets of A is

    (a)

    8

    (b)

    5

    (c)

    6

    (d)

    7

  2. if \(\frac { 1 }{ 7 } \) = \(0.\bar { 142857 } \) then the value of \(\frac { 5 }{ 7 } \)

    (a)

    \(0.\overline { 142857 } \)

    (b)

    \(0.\overline { 714285 } \)

    (c)

    \(0.\overline { 571428 } \)

    (d)

    0.714285

  3. Which of the following are irrational numbers?
    \(\sqrt { 2+\sqrt { 3 } } \)
    \(\sqrt [ 3 ]{ 5+\sqrt { 7 } } \)
    \(\sqrt { 8-\sqrt [ 3 ]{ 8 } } \)
    \(\sqrt { 4+\sqrt { 25 } } \)

    (a)

    (ii), (iii) and (iv)

    (b)

    (i), (ii) and (iv)

    (c)

    (i), (ii) and (iii)

    (d)

    (i), (iii) and (iv)

  4. If p(a)= 0 then (x-a) is a ___________ of p(x)

    (a)

    divisor

    (b)

    quotient

    (c)

    remainder

    (d)

    factor

  5. (a-b) (a2+ab+b2)=_________

    (a)

    a+ b+ c- 3abc

    (b)

    a- b2

    (c)

    a+ b3

    (d)

    a3 - b3

  6. If one of the factor of x2-9x+18 is (x-3) then the other factor is_________

    (a)

    x-9

    (b)

    x+6

    (c)

    (x-6)

    (d)

    x-18

  7. In the given figure CE || DB then the value of x0 is

    (a)

    45°

    (b)

    30°

    (c)

    75°

    (d)

    85°

  8. If the length of a chord decreases, then its distance from the centre__________

    (a)

    Increases

    (b)

    decreases

    (c)

    same

    (d)

    cannot say

  9. The distance between the longest chord of a circle and the centre is________

    (a)

    1

    (b)

    0

    (c)

    2

    (d)

    5

  10. 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

  11. The point (0, -3) lies on _______________

    (a)

    + ve x-axis

    (b)

    + ve y-axis

    (c)

    - ve x-axis

    (d)

    - ve y-axis

  12. Find the mean of the prime factors of 165.

    (a)

    5

    (b)

    11

    (c)

    13

    (d)

    55

  13. The mean of the first 10 prime number is

    (a)

    12.6

    (b)

    12.7

    (c)

    12.8

    (d)

    12.9

  14. The value of \(\frac { sin{ 29 }^{ 0 }31' }{ cos{ 60 }^{ 0 }29' } \) is

    (a)

    0

    (b)

    2

    (c)

    1

    (d)

    -1

  15. The probability of an event cannot be

    (a)

    Equal to zero

    (b)

    Greater than zero

    (c)

    Equal to one

    (d)

    Less than zero

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