9th Standard Maths English Medium Free Online Test 1 Mark Questions with Answer Key 2020 - 2021 Part - 4

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 B ⊆ A then n(A∩B) is

    (a)

    n(A – B)

    (b)

    n(B)

    (c)

    n(B – A)

    (d)

    n(A)

  2. The shaded region in the venn diagram is

    (a)

    \(A\cup B\)

    (b)

    \(A\cap B\)

    (c)

    \(\left( A\cap B \right) ^{ ' }\)

    (d)

    \(\left( A-B \right) \cup \left( B-A \right) \)

  3. An irrational number between 2 and 2.5 is

    (a)

    \(\sqrt { 11 } \)

    (b)

    \(\sqrt { 5 } \)

    (c)

    \(\sqrt { 2.5 } \)

    (d)

    \(\sqrt { 8 } \)

  4. The product of \(2\sqrt { 5 } \) and \(6\sqrt { 5 } \) is_______________.

    (a)

    \(12\sqrt { 5 } \)

    (b)

    60

    (c)

    40

    (d)

    \(8\sqrt { 5 } \)

  5. The zero of the polynomial 2x+5 is

    (a)

    \(\frac {5}{2}\)

    (b)

    \(-\frac {5}{2}\)

    (c)

    \(\frac {2}{5}\)

    (d)

    \(-\frac {2}{5}\)

  6. The value of the polynomial f(x)=6x-3x2+9 when x=-1 is _____________________

    (a)

    0

    (b)

    1

    (c)

    2

    (d)

    3

  7. If \(\frac { { a }_{ 1 } }{ { a }_{ 2 } } \neq \frac { { b }_{ 1 } }{ { b }_{ 2 } } \) where a1x + b1y + c1 = 0 and a2x + b2 y + c2 = 0 then the given pair of linear equation has __________ solution(s)

    (a)

    no solution

    (b)

    two solutions

    (c)

    unique

    (d)

    infinite

  8. The point of concurrency of the medians of a triangle is known as __________

    (a)

    circumcentre

    (b)

    incentre

    (c)

    orthocentre

    (d)

    centroid

  9. PQ and RS are two equal chords of a circle with centre O such that ㄥPOQ=70°, then ㄥOR

    (a)

    60°

    (b)

    70°

    (c)

    55°

    (d)

    80°

  10. The point whose ordinate is 4 and which lies on the y-axis is............

    (a)

    ( 4, 0 )

    (b)

    (0, 4)

    (c)

    (1, 4)

    (d)

    (4, 2)

  11. The point which is on y-axis with ordinate - 5 is _____________

    (a)

    (0, - 5)

    (b)

    (-5,0)

    (c)

    (5,0)

    (d)

    (0,5)

  12. The mean of 5, 9, x, 17, and 21 is 13, then find the value of x

    (a)

    9

    (b)

    13

    (c)

    17

    (d)

    21

  13. 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)

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

  14. The volume of a cuboid is 660 cm3 and the area of the base is 33 cm2. Its height is

    (a)

    10 cm

    (b)

    12 cm

    (c)

    20 cm

    (d)

    22 cm

  15. A letter is chosen at random from the word “STATISTICS”. The probability of getting a vowel is

    (a)

    \(\frac { 1 }{ 10 } \)

    (b)

    \(\frac { 2 }{ 10 } \)

    (c)

    \(\frac { 3 }{ 10 } \)

    (d)

    \(\frac { 4 }{ 10 } \)

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