The ratios of the respective heights and the respective radii of two cylinders are 1 : 2 and 2 : 1 respectively. Then their respective volumes are in the ratio
4 : 1
1 : 4
2 : 1
1 : 2
The volume of a sphere is V and surface area is A. Then,
How many solid shots of 2mm radius can be formed from a solid iron cylinder of radius 4cm and height 16cm?
20,000
22,000
24,000
28,000
The surface areas of two spheres are in the ratio of 9 : 25. Then their volumes are in the ratio
81 : 625
759 : 15625
27 : 75
27 : 125
The diameters of the two cones are equal. If their slant heights are in the ratio of 5 : 4, find the ratio of their curved surface areas.
3 : 2
5 : 4
4 : 3
2 : 5
Two right circular cones have equal radii. If their slant heights are in the ratio 4 : 3, then their respective curved surface areas are in the ratio
16 : 9
8 : 6
3 : 4
If the radius of a sphere is half of the radius of another sphere, then their respective volumes are in the ratio
1 : 8
8 : 1
The curved surface of a cone of base radius and slant height l is
π r l
π r2 l
2π r l
π r l(l + r)
A sphere of radius r has the same volume as that of a cone with a circular base of radius r. Find the height of the cone.
2r
3r
4r
6r
If the volume and the base area of a right circular cone are 48πcm3 and 12π cm2 respectively, then the height of the cone is equal to
6cm
4cm
10cm
12cm
