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objective Ques (100 results)
31)

A hemispherical bowl of internal diameter 36 cm is full of a liquid. This liquid is to be filled into cylindrical bottles each of radius 3 cm and height 12 cm. How many such bottles are required to empty the bowl?

SSC CGL 2019
A)

72

B)

54

C)

36

D)

27

32)

A solid cube is cut into three cuboids of same volumes. What is the ratio of the surface area of the cube to the sum of the surface areas of any two of the cuboids so formed?

SSC CGL 2019
A)

9 : 10

B)

27 : 16

C)

27 : 10

D)

9 : 8

33)

If the curved surface area of a solid cylinder is one-third of its total surface area, then what is the ratio of its diameter to its height?

SSC CGL 2019
A)

5 : 2

B)

1 : 1

C)

2 : 1

D)

4 : 1

34)

If the volume of a sphere is 4851 \(cm^3\), then its surface area (in \(cm^2\)) is: (Take \(\pi={22\over7}\))

SSC CGL 2019
A)

1386

B)

2772

C)

1323

D)

1337

35)

The volumes of spheres A and B are in the ratio 125 : 64. If the sum of radii of A and B is 36 cm,then the surface area (in \(cm^2\)) of A is:

SSC CGL 2020
A)

\(800\pi\)

B)

\(512\pi\)

C)

\(1600\pi\)

D)

\(1024\pi\)

36)

Find the height of a cuboid whose volume is 330 \(cm^3\) and base area is 15 \(cm^2\) .

SSC CGL 2020
A)

22 cm

B)

21 cm

C)

19 cm

D)

24 cm

37)

A cylinderical container of 32 cm height and 18 cm radius is filled with sand. Now all this sand is used to form a conical heap of sand. If the height of the conical heap is 24 cm, what is the radius of its base?

SSC CGL 2016
A)

63 cm

B)

6 cm

C)

36 cm

D)

45 cm

38)

If the radius of a right circular cylinder is decreased by 10%, and the heightis increased by 20%, then the percentage increase/decrease in its volume is :

SSC CGL 2020
A)

increase by 2.8%

B)

increase by 1.8%

C)

decrease by 1.8%

D)

decrease by 2.8%

39)

The length of a rectangle is five times of its breadth. If the area of the rectangle is 3125 cm2, then what is the length of the rectagle?

SSC CHSL 2021
A)

125 cm

B)

120 cm

C)

135 cm

D)

130 cm

40)

The sum of the radius of the base and the height of a closed solid cylinder is 12.5 cm. If the total surface area of the cylinder is 275 cm2, then its radius is:  \(\rm \left(Take \space\pi = \frac{22}{7}\right)\)

SSC CHSL 2021
A)

7 cm

B)

3 cm

C)

5 cm

D)

3.5 cm

showing 31 - 40 results of 100 results

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