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

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 is B, then A∩B is

    (a)

    A

    (b)

    B

    (c)

    U

    (d)

  2. If U={x:x\(\in \)W and x<20},A={2,4,,6,8},B={6,8,12,14} then \(\left[ n\left( A\cup B^{ ' } \right) \right] \)

    (a)

    15%

    (b)

    20%

    (c)

    10%

    (d)

    5%

  3. When written with a rational denominator, the expression \(\frac { 2\sqrt { 3 } }{ 3\sqrt { 2 } } \) can be simplified as

    (a)

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

    (b)

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

    (c)

    \(\frac { \sqrt { 6 } }{ 3 } \)

    (d)

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

  4. \(\sqrt [ 5 ]{ 21 } \times 6\sqrt { 10 } \)

    (a)

    \(30\sqrt { 210 } \)

    (b)

    30

    (c)

    \(\sqrt { 210 } \)

    (d)

    \(210\sqrt { 30 } \)

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

    (a)

    divisor

    (b)

    quotient

    (c)

    remainder

    (d)

    factor

  6. If x - 2 is a factor of q(x), then the remainder is___________

    (a)

    q(-2)

    (b)

    x - 2

    (c)

    0

    (d)

    -2

  7. Orthocentre of a triangle is the point of concurrency of _______

    (a)

    medians

    (b)

    altitudes

    (c)

    angle bisectors

    (d)

    perpendicular bisectors of side

  8. 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°

  9. The centre of a circle is (0, 0). One end point of a diameter is (5, -1), then ______________

    (a)

    \(\sqrt{24}\)

    (b)

    \(\sqrt{37}\)

    (c)

    \(\sqrt{26}\)

    (d)

    \(\sqrt{17}\)

  10. The coordinates of the point C dividing the line segment joining the points P(2,4) and Q(5,7) internally in the ratio 2:1 is

    (a)

    \((\frac{7}{2},\frac{11}{2})\)

    (b)

    (3,5)

    (c)

    (4,4)

    (d)

    (4,6)

  11. 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)

    \(\bar X\)

  12. The mean of 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)

    \(\bar{X}\)

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

    (a)

    0

    (b)

    1

    (c)

    2

    (d)

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

  14. The capacity of a water tank of dimensions 10 m × 5 m × 1.5 m is

    (a)

    75 litres

    (b)

    750 litres

    (c)

    7500 litres

    (d)

    75000 litres

  15. A collection of one or more outcomes of an experiment is called

    (a)

    Event

    (b)

    Outcome

    (c)

    Sample point

    (d)

    None of the above

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