Mathematics
A solid metal cuboid with dimensions 11 cm, 18 cm and 8 cm is melted and identical solid spheres, each of radius 1 cm, are formed. The number of spheres formed is :
378
1134
1512
none of these
Related Questions
A cone and a sphere have equal volumes. If height of the cone = radius of the sphere = 10 cm, the radius of the cone is :
40 cm
10 cm
30 cm
20 cm
By applying force on an uniform metallic wire, the wire is extended four times along its length with same width all around. Then :
(i) The volume of metal in both the cases is same.
(ii) The surface area of solid wires in both the cases is same.
Which of the above statements is/are true?
only (i)
only (ii)
both (i) and (ii)
neither (i) nor (ii)
The radii of two solid spheres are 10 cm and 20 cm. The ratio between their volumes is :
3 : 8
1 : 4
1 : 8
8 : 3
What is the least number of solid metallic spheres, each of 6 cm diameter, that should be melted and recast to form a solid metal cone whose height is 45 cm and diameter 12 cm ?