9th Standard Maths English Medium Free Online Test Book Back 1 Mark Questions Part - One

9th Standard

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Maths

Time : 00:10:00 Hrs
Total Marks : 10

    Part A

    10 x 1 = 10
  1. If n(A \(\cup \) B \(\cup \) C) = 40, n(A) = 30, n(B) = 25, n(C) = 20, n(A\(\cap \)B) = 12, n(B\(\cap \)C) = 18 and n(A\(\cap \)C) = 15 , then n(A\(\cap \)B\(\cap \)C) is

    (a)

    5

    (b)

    10

    (c)

    15

    (d)

    20

  2. The smallest rational number by which \(\frac { 1 }{ 3 } \)  should be multiplied so that its decimal expansion terminates after one place of decimal is

    (a)

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

    (b)

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

    (c)

    3

    (d)

    30

  3. The sum of the polynomials p(x) = x3 – x2 – 2, q(x) = x2–3x+ 1

    (a)

    x3 – 3x – 1

    (b)

    x3 + 2x2 – 1

    (c)

    x3 – 2x2 – 3x

    (d)

    x3 – 2x2 + 3x –1

  4. The exterior angle of a triangle is equal to the sum of two

    (a)

    Exterior angles

    (b)

    Interior opposite angles

    (c)

    Alternate angles

    (d)

    Interior angles

  5. The points (–5, 2) and (2, –5) lie in the ________

    (a)

    same quadrant

    (b)

    II and III quadrant respectively

    (c)

    II and IV quadrant respectively

    (d)

    IV and II quadrant respectively

  6. 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)

  7. 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

  8. If 2sin 2\(\theta\) = \(\sqrt { 3 } \) , them the value of \(\theta\) is

    (a)

    900

    (b)

    300

    (c)

    450

    (d)

    600

  9. The perimeter of an equilateral triangle is 30 cm. The area is

    (a)

    \(10\sqrt { 3 } \) cm2

    (b)

    \(12\sqrt { 3 } \) cm2

    (c)

    \(15\sqrt { 3 } \) cm2

    (d)

    \(25\sqrt { 3 } \) cm 2

  10. Probability lies between

    (a)

    −1 and +1

    (b)

    0 and 1

    (c)

    0 and n

    (d)

    0 and \(\infty \)

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