A. 1 unit
B. 2 units
C. 3 units
D. 4 units
0
A right cylinder and a right circular cone have the same radius and the same volume. The ratio of the height of the cylinder to that of the cone is_________?
0
The radius of a circular cylinder is the same as that of a sphere. Their volumes are equal. The height of the cylinder is________?
A. 3: 5
B. 2: 5
C. 3: 1
D. 1: 3
0
The number of solid spheres each of diameter 6 cm, that could be moulded to form a solid metal cylinder of height 45 cm and diameter 4 cm is?
A. 4/3 times its radius
B. 2/3 times its radius
C. Equal to it’s radius
D. Equal to it’s diameter
0
The length of the wire of 0.2mm radius that can be drawn after melting a solid copper sphere of diameter 18cm?
A. 3
B. 4
C. 5
D. 6
0
The radius of a wire is decreased to one –third if volume remains the same length will increase
A. 24.3 m
B. 243 m
C. 2430 m
D. 24300 m
0
If the volumes of two cubes are in the ratio 8: 1, the ratio of their edges is_________?
A. 1 Time
B. 3 times
C. 6 times
D. 9 times
0
A metal sheet 27 cm long 8cm broad and 1 cm thick is melted into a cube. The difference between the surface areas of two solids is__________?
A. 8: 1
B. 2√2 : 1
C. 2 : 1
D. None of these
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