CBSE Class 9 Mathematics MCQs Set B

 

Question: Signs of the abscissa and ordinate of a point in the second quadrant are respectively

  • a) +,+
  • b) -,-
  • c) -,+
  • d) +,-

Answer: -,+


Question: Which of the following is not a criterion for congruence of triangles?

  • a) SAS
  • b) ASA
  • c) SSA
  • d) SSS

Answer: SSA


Question: If AB = 12 cm, BC = 16 cm and AB is perpendicular to BC, then the radius of the circle passing through the points A, B and C is :

  • a) 6
  • b) 8
  • c) 10
  • d) 12

Answer: 10


Question: Any point on the y-axis is of the form

  • a) (x, 0)
  • b) (x, y)
  • c) (0, y)
  • d) ( y, y)

Answer: (0, y)


Question: The range of the data : 25, 18, 20, 22, 16, 6, 17, 15, 12, 30, 32, 10, 19, 8, 11, 20 is

  • a) 10
  • b) 15
  • c) 18
  • d) 26

Answer: 26


Question: The radius of a hemispherical balloon increases from 6 cm to 12 cm as air is being pumped into it. The ratios of the surface areas of the balloon in the two cases is

  • a) 1 : 4
  • b) 1 : 3
  • c) 2 : 3
  • d) 2 : 1

Answer: 1 : 4


Question: In a survey of 364 children aged 19-36 months, it was found that 91 liked to eat potato chips. If a child is selected at random, the probability that he/she does not like to eat potato chips is :

  • a) 0.25
  • b) 0.50
  • c) 0.75
  • d) 0.80

Answer: 0.75


Question: The length of the longest pole that can be put in a room of dimensions (10 m × 10 m × 5m) is

  • a) 15 m
  • b) 16 m
  • c) 10 m
  • d) 12 m

Answer: 15 m


Question: Point (0, –7) lies

  • a) on the x –axis
  • b) in the second quadrant
  • c) on the y-axis
  • d) in the fourth quadrant

Answer: on the y-axis


Question: If AB = QR, BC = PR and CA = PQ, then

  • a) Δ ABC ≅ Δ PQR
  • b) Δ CBA ≅ Δ PRQ
  • c) Δ BAC ≅ Δ RPQ
  • d) Δ PQR ≅ Δ BCA

Answer: Δ CBA ≅ Δ PRQ


More Questions.........................


Question: AD is a diameter of a circle and AB is a chord. If AD = 34 cm, AB = 30 cm, the distance of AB from the centre of the circle is:

  • a) 17 cm
  • b) 15 cm
  • c) 4 cm
  • d) 8 cm

Answer: 8 cm


Question: A linear equation in two variables is of the form ax + by + c = 0, where

  • a) a ≠ 0, b ≠ 0
  • b) a = 0, b ≠ 0
  • c) a ≠ 0, b = 0
  • d) a = 0, c = 0

Answer: a = 0, b ≠ 0


Question: The class mark of the class 90-120 is :

  • a) 90
  • b) 105
  • c) 115
  • d) 120

Answer: 105


Question: The number of planks of dimensions (4 m × 50 cm × 20 cm) that can be stored in a pit which is 16 m long, 12m wide and 4 m deep is

  • a) 1900
  • b) 1920
  • c) 1800
  • d) 1840

Answer: 1920


Question: In a medical examination of students of a class, the following blood groups are recorded:




  • a) 1/4
  • b) 13/40
  • c) 3/10
  • d) 1/8

Answer: 3/10


Question: The lateral surface area of a cube is 256 m2. The volume of the cube is

  • a) 512 m3 
  • b) 64 m3
  • c) 216 m3 
  • d) 256 m3

Answer: 512 m3 

 

Question: 9sec2 A – 9 tan2A is :

  • a) 1
  • b) 9
  • c) 8
  • d) 0

Answer: 9


Question: Point (–3, 5) lies in the

  • a) first quadrant
  • b) second quadrant
  • c) third quadrant
  • d) fourth quadrant

Answer: second quadrant


Question: If Δ ABC ≅ Δ PQR and Δ ABC is not congruent to Δ RPQ, then which of the following is not true:

  • a) BC = PQ
  • b) AC = PR
  • c) QR = BC
  • d) AB = PQ

Answer: BC = PQ


Question: ABCD is a cyclic quadrilateral such that AB is a diameter of the circle circumscribing it and ∠ADC = 140º, then ∠BAC is equal to:

  • a) 80º
  • b) 50º
  • c) 40º
  • d) 30º

Answer: 40º


Question: The linear equation 3x – y = x – 1 has :

  • a) A unique solution
  • b) Two solutions
  • c) Infinitely many solutions
  • d) No solution

Answer: Infinitely many solutions


Question: The width of each of five continuous classes in a frequency distribution is 5 and the lower class-limit of the lowest class is 10. The upper class-limit of the highest class is:

  • a) 15
  • b) 25
  • c) 35
  • d) 40

Answer: 35


Question: In a cylinder, if radius is halved and height is doubled, the volume will be

  • a) Same
  • b) doubled
  • c) halved
  • d) four times

Answer: doubled


Question: In a sample study of 642 people, it was found that 514 people have a high school certificate. If a person is selected at random, the probability that the person has a high school certificate is :

  • a) 0.5
  • b) 0.6
  • c) 0.7
  • d) 0.8

Answer: 0.8


Question: The total surface area of a cube is 96 cm2. The volume of the cube is:

  • a) 8 cm3 
  • b) 512 cm3
  • c) 64 cm3 
  • d) 27 cm3

Answer: 64 cm3 

 

 


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