Mathematics
The number of coins, 1.5 cm in diameter and 0.2 cm thick to be melted to form a right circular cylinder of height 10 cm and diameter 4.5 cm, is :
380
450
472
540
Related Questions
The ratio between the curved surface area and the total surface area of a right circular cylinder is 1 : 2. If the total surface area is 616 cm2, the volume of the cylinder is :
1232 cm3
1078 cm3
1848 cm3
1548 cm3
If the radius of the base of a right circular cylinder is halved, keeping the height same, what is the ratio of the volume of the new cylinder to that of the original one?
1 : 2
1 : 4
1 : 8
4 : 1