## Aptitude Volume and Surface Area Test Paper 26) In a shower 10 cm of rain falls. What is the volume of water that falls on 1.5 hectares of ground? - 1500 m
^{3} - 1400 m
^{3} - 1200 m
^{3} - 1000 m
^{3}
1 hectare = 10,000 m ∴ Volume of water = Area * Depth 7) The dimensions of a piece of iron in the shape of a cuboid are 270 cm x 100 cm x 64 cm. If it is melted and recast into a cube, find the surface of the cube. - 14,400 cm
^{2} - 44,200 cm
^{2} - 57,600 cm
^{2} - 86,400 cm
^{2}
Volume of iron piece = l x b x h 8) Surface area of a sphere is 5544 cm2. Its volume will be - 30808 cm
^{3} - 38808 cm
^{3} - 380808 cm
^{3} - 380800 cm
^{3}
Surface area of sphere = 4 π r 9) If two spheres have their radii in the ratio 2: 3, the ratio of their volumes is - 8 : 27
- 4 : 9
- 6 : 12
- 1 : 15
Let the radius of both the spheres be 'r' and 'R', respectively. 10) The radius of hemisphere is 3 cm. The ratio of its volume to the total surface area is - 1: 3
- 2: 1
- 1: 1
- 2: 3
Radius of hemisphere = 3 cm Aptitude Volume and Surface Area Test Paper 1 Aptitude Volume and Surface Area Test Paper 3 Aptitude Volume and Surface Area Test Paper 4 Aptitude Volume and Surface Area Test Paper 5 |