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1
The surface area of a sphere of radius 5.6 m is __________________ .
2
The length and breadth of a cuboidal box are 3 cm and 5 cm, respectively. If its lateral surface area is 60 cm sq, then the height of the box is equal to ______________
3cm
7.5cm
3.75cm
5cm
3
Edge of cube whose volume is 27 cu cm is __________________
1/9 cm
1/3 cm
3 cm
9 cm
4
Determine the volume of a spherical shell which has an inner radius of 5 cm and an outer radius of 8 cm.
1261.71 cu cm
1612.71 cu cm
1621.71 cu cm
None of these
5
The lateral surface of a cube of side 10cm is equal to ___________________
400cm sq
80cm sq
600cm sq
100cm sq
6
Find the total surface area of a cone, if its slant height is 9 m and the radius of its base is 12 m.
692 sq m
592 sq m
792 sq m
682 sq m
7
Find the total surface area of hemisphere if radius is 28 m.
8
If the curved surface area and the radius of a base of a cylinder are 8.8 cm sq and 0.7 cm respectively, then the height of cylinder is _____________
2 cm
10 cm
0.5 cm
1 cm
9
The diameter of a roller 120 cm long is 84 cm. if it takes 500 complete revolutions to level a a playground determine the cost of levelling it at the rate of 30 paise per sq metre ?
475.2
745.2
574.2
275.4
10
A sphere has radius 2 cm and hemisphere has radius 4 cm. The ratio of their volume is _________________
4:1
1:4
1:8
8:1
11
A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the pillar at the rate of 12.50 per sq m.
66.75
69.75
68.75
64.75
12
How many cubes of side 2 cm can be packed in a cubical box with inner side equal to 4 cm ?
13
A hollow cylindrical tube open at both ends, is made of iron 2 cm thick. If the external diameter is 50 cm and the length of the tube is 140 cm, what is the volume of the iron used?
42240 cubic cm
42440 cubic cm
42480 cubic cm
40240 cubic cm
14
Find the surface area of a sphere of diameter 3.5 cm.
15
The surface area of a sphere is 1056 sq cm, its diameter is __________________ .
16
Find radius of the hemisphere if total surface area of the hemisphere is 5544 sq cm.
17
A solid sphere of radius 3 cm is melted and then cast into small spherical balls each of diameter 0.6 cm. Find the number of balls thus obtained.
100
10,000
1000
1,00,000
18
A right circular cone is 3.6 m high and radius of its base is 1.6 cm. It is melted and recast into a right circular cone with radius of its base as 1.2 cm. Find its height.
6.4 cm
5.3 cm
7.3 cm
5.6 cm
19
A conical vessel, with internal radius of the base 8 cm and height 42 cm is full of water. The water is poured in a right circular cylindrical vessel, the radius of its base is 16 cm, the height in cm of the water level in the cylindrical vessel is:
8/5
7/3
8/3
7/2
20
A hollow garden roller, 63 cm wide with a girth of 440 cm, is made of 4 cm thick iron. Find the volume of the iron. (In cu cm)
107892
107732
107712
107070