Mathematics MCQ Class 9

byMahanand Tudu -
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SELF EVALUATION -1

  1. Which of the following is rational number ?
    2. A) √7         B) 1/√3
    C) √3/2।          D) √(81)


  2. 1•272727... is equal to
    3. A) 11/14          B) 127/100
    C) 14/11 D) None of these


  3. 6√6 ÷ 2√2 is equal to
    4. A) 3√2           B) 3√3
    C) 2√3 D) None of these


  4. The value of (81)³/⁴ is
    5. A) 27            B) 72
    C) 81 D) None of these


  5. Which of the following is a polynomial ?
    6. A) x + 1/x                B) √2√x + √3 x
    C) √2 X² +√3 x D) √x - 3x + 2


  6. The degree of X³(2 + 3X²) is
    7. A) 2           B) 3
    C) 5 D) none of these


  7. 4 x + 3 x² + 1 is divided by 1 + x; then the remainder will be
    8. A) 0            B) 1
    C) 2              D) -1


  8. Factorisation of x² - 5 x + 6 is
    9. A) (x - 2)(x + 3)        B) (x + 2)(x - 3)
    C)(x - 2)(x - 3) D) (x + 2)(x + 3)


  9. The point at which the two coordinate axes meet is called the
    10. A) abscissa           B) ordinate
    C) origin D) quadrant


  10. The ordinate of the point (3 , 1)is
    11. A) 3             B) 1
    C) 4 D) (1,3)


  11. Which of the following is a linear equation?
    12. A) x + 1/x = 5            B) (x+1)(x-1) = 0
    C) x² +2 = x+1 D) (x-1)² = x² -2


  12. Comparing equation x= 3 y with ax + by + c = 0 the values of a,b and c will be
    13. A) a=1, b=-3, c=0          B) a=1, b=3, c=0
    C) a=-1, b=-3, c=0 D) a=-1, b=3, c=0


  13. The solution of the equation 5 x +3 y = 4 is
    14. A) x=2,y=5            B) x=1,y=3
    C) x=-1,y=3 D) x=2,y=-1


  14. The graph of y=3 is parallel to
    15. A) x-axis                      B) y-axis
    C) both A and B D) none of these


  15. The number of dimensions of a point is
    16. A) 0           B) 1
    C) 2 D) 3


  16. The supplementary angle of 65° will be
    17. A) 25°         B) 115°
    C) 45° D) 85°


  17. In the figure if PQ || AB,

    then the value of x will be
    18. A) 48°           B) 68°
    C) 26° D) 64°

     

  18. In ∆PQR,∠R=∠P and QR=8 cm and PR = 10 cm, then the length of PQ is
    19. A) 4 cm           B) 5 cm
    C) 8 cm D) 10 cm


  19. In ∆ABC,∠B=∠C and ∠B=70°, then ∠A is equal to
    20. A) 40°।              B) 50°
    C) 60° D) None of these


  20. Which of the following groups can be the three sides of a triangle?
    21. A) 1 cm, 2 cm, 3 cm    B) 2 cm, 4 cm, 6 cm
    C)2 cm, 4 cm, 7 cm D) 4 cm, 7 cm, 10 cm


  21. If any two sides and the included angle of one triangle are equal to any two sides and the included angle of the other triangle, then two triangles will be congruent
    22. A) from S-A-S               B) from S-S-A
    C)from S-S-S D) none of these


  22. Each angle of square is
    23. A) 60°              B) 45°
    C) 90° D) 180°


  23. If in a quadrilateral ABCD, ∠A= ∠C, ∠B=∠D and the diagonal AC ≠ diagonal BD, then what kind of quadrilateral will it be ?
    24. A) Trapezium                 B) Rectangle
    C) Parallelogram D) Square


  24. AD is the median of ∆ABC. If ar(∆ABC) = 32 cm² then ar(ADC) will be
    25. A) 18 cm²                 B) 16 cm²
    C) 32 cm² D) None of these


  25. In figure, the area of parallelogram ABCD is 

    26. A) AB × BM             B) BC × BN
    C) DC × DL D) AD × DL


  26. How many circles can be drawn through three non collinear points ?
    27. A) 1।                     B) 2
    C) Infinite D) Not even one


  27. The value of x in the figure is 

    28. A) 40°              B) 50°
    C) 30° D) 45°


  28. With the help of a ruler and a compass it is not possible to construct an angle of
    29. A) 7•5°                         B) 22•5°
    C) 25•5° D) None of these


  29. The area of an isosceles right- angled triangle is 200 cm² ; then the length of its hypotenuse will be
    30. A) 10 cm                         B) 20√2 cm
    C) 5√2 cm D) 20 cm


  30. The area of a triangle of sides 9 cm, 40 cm and 41 cm will be
    31. A) 150 cm²                      B) 160 cm²
    C) 180 cm² D) None of these


  31. How many edges are there in a cuboid ?
    32. A) 4                B) 6
    C) 8   D) 12


  32. The total surface area of a right circular cone is
    33. A) (1/3) Ï€ r²h                    B) Ï€ rl
    C) π r(l+r) D) π r(h+r)


  33. If the area of the base of a right circular cylinder be Ï€ a² cm² and height be b cm, then the area of its curved surface will be
    34. A) 2 Ï€ a² cm²                      B) 2 Ï€ ab cm²
    C)2 Ï€ a² bcm² D) None of these


  34. The radius of a hemispherical balloon increases from 6 cm to 12 cm as air is being pumped into it. The ratio of the surface areas of the balloon in the two cases is
    35. A) 1:3                          B) 1:4
    C) 3:1 D) 4:1


  35. The difference between the highest and the lowest value in a data is
    36. A) class size                 B) class mark
    C) range D) class interval


  36. Which is the class mark of the class interval 109 - 119 ?
    37. A) 112                      B) 120
    C) 114 D) 228


  37. The median of 5,10,3,7,2,9,6,2,11 is
    38. A) 2                               B) 5
    C) 6 D) 3


  38. A coin is tossed 100 times and the head is obtained 55 times. The probability of obtaining tail will be
    39. A) 20/9                            B) 9/20
    C) 11/20 D) None of these


  39. In a cricket match , a batswoman hits boundary 10 times out of 30 balls she plays. The probability of hitting a boundary will be
    40. A) 1/3                           B) 2/3
    C) 20/30 D) None of these


  40. The radius of a circle is 10 cm. What will be the length of a chord which is at the distance of 8 cm from the centre ?
    41. A) 6 cm                          B) 8 cm
    C) 10 cm D) 12 cm


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