CBSE Class 9 Mathematics MCQs

CBSE Class 9 Mathematics MCQs. Chapter wise Multiple Choice Questions (MCQds) are being given by teachers to students to make them understand the chapter concepts. Its extremely critical for all CBSE students to practice all MCQs which will help them in gaining better marks in examinations. All assignments available for free download on the website are developed by the best teachers having many years of teaching experience in CBSE schools all over the country. Students, teachers and parents are advised to download the CBSE study material. 

 

1) Certain number of persons comprising adults and children went to an exhibition. Entry ticket for the children is Rs 1.50 and Rs 4.50 for the adults. Total cost of the tickets come out to be Rs 600.

Which of the following pairs of numbers can be the number of adults and childrens?

A. 90, 70 B. 100, 60 C. 110, 50 D. 120, 40

2) Mean of five observations is 7, on excluding two observations, the mean reduces to 6. On adding, the difference of the two excluded observations, the mean of the four observations becomes 24/4.

What are the two excluded observations?

A. 2, 9

B. 6, 13

C. 5, 12

D. 8, 15

3) Which of the following graph correctly represents the line 4x − 3y = 24?

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CBSE Class 9 Mathematics MCQs

 

4 ) What is the length of the line segment joining the mid points of the diagonals of a trapezium that is parallel to each of the parallel sides having lengths 12 cm and 4 cm.
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5) The arithmetic mean of a series of 20 items was calculated as 20. While calculating it, an item 13 was measured as 30. The correct arithmetic mean is
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6) A hemispherical bowl of thickness 0.7 cm is made up of a metal such that the inner radius of the bowl is 2.1 cm. The cost of the metal used is Rs 1.5 per cm3.
What is the approximate cost of the metal used to make such a bowl?

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7) What is the probability of getting the number 5 in the next throw?
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8) A cone and a cylinder have the same base area. The height and radius of these two solids are the same. If a sphere has the same radius as that of the cone, then what is the ratio of the volumes of the cone, the sphere and the cylinder?

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9) If a cone and a cylinder have the same base area and the same volume, then what is the ratio of their respective heights?

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The mean weight of a group of 6 students and a teacher is 41 kg. If the teacher is excluded from the group,then the mean weight gets reduced by 2.5 kg.
 
10) What is the weight of the teacher?
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11) If the radius of a sphere is increased by 10%, then what is the percentage increase in the surface area of the sphere?
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12) If AC = 12 cm and BD = 16 cm, then what is the measure of PB?

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Ashu hired a cab in the night to go to a party. The cab provider told him that he will charge Rs 1000 for the cab and an extra charge of Rs 100 will be applicable for each hour after 12:00 a.m.


13) Ashu used the cab for x hours more after 12:00 a.m. If y is the total amount paid by Ashu, then which equation represents the given situation?
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14) What is the area of the region enclosed by the lines x = 0, y = 0 and x + y = 2?
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15) The ratio of radii of a cylinder and cone is 1: 3 and the ratio of their heights is 3: 4. What is the ratio of the volumes of the cylinder and the cone?
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16) What are the respective values of x and y in the given figure?

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17) If (1, k) is a solution of the equation 2x + 5y = 12, then what is the value of k?

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18) If the line ax + by + c = 0 is parallel to x-axis, then which of the following relations is correct?
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A hemispherical tub is full of water. The water is to be emptied in cylindrical bottles. The radius of the cylindrical bottles is the same as that of the hemisphere. The height of the bottles is one-sixth of their radius.

19) How many cylindrical bottles can be filled from the water in the hemispherical tub?

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A metallic cylinder of radius 8 cm and height 20 cm is melted and recasted into 15 equal small spheres.


20) What is the diameter of each sphere?

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21 )  The rule followed by the function table is

CBSE Class 9 Mathematics MCQs-43

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The mean weight of ten students is 35 kg. When two more students were included in the group, the mean increased by 1 kg.

22) If the weight of both the new students is the same, then what is the weight of each of the new students ?

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23) What is the measure of AR ?

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The ages of Bob and his father are related by the expression y = 4x − 5 where x is Bob’s age and y is his father’s age.


24) Which of the following conclusions is true about the given expression?
A. Bob’s father’s age is five less than four times Bob’s age
B. Bob’s father’s age is four less than five times Bob’s age
C. Bob’s father’s age is four times Bob’s age
D. Bob’s father’s age as five times Bob’s age
 

25) The mean of eight numbers is 21. If the mean of the first six numbers is 20 and the mean of the last six numbers is 21.5, then what is the mean of the middle four numbers?

A. 18.5
B. 19
C. 20.25
D. 23
 
 
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26) What is the perimeter of ΔABD if the perimeter of  ΔAOC is 20 cm?
A. 30 cm
B. 40 cm
C. 50 cm
D. 60 cm
 
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27) What is the mean of the given frequency distribution?
A. 21.04
B. 23.08
C. 25.40
D. 27.60
 
28) In a class of 80 students, 25 students like to play hockey and 55 students like to play football. What is the probability that a randomly chosen student likes to play hockey?

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What are the respective measures of ∠ CBE and ∠ DEB?
A. 90° and 75°
B. 90° and 105°
C. 105° and 120°
D. 115° and 135°
 
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A. 0.13
B. 0.26
C. 0.39
D. 0.52
 
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