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CBSE Notes 2011-2012 » X-Mathematics-Term2

# Surface Areas and Volumes

## The radii of two cylinders are in the ratio 2 : 3 and their heights are in the ratio 5 : 3. The rati...

Multiple choice question

The radii of two cylinders are in the ratio 2 : 3 and their heights are in the ratio 5 : 3. The ratio of their volumes is

## The number of coins, 1.5 cm in diameter and 0.2 cm thick to be melted to form a right circular cylin...

Multiple choice question

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

## A cylindrical vessel 60 cm in diameter is partially tilled with water. A sphere 30 cm in diameter is...

Multiple choice question

A cylindrical vessel 60 cm in diameter is partially tilled with water. A sphere 30 cm in diameter is dropped into it. The increase in the level of water in the vessel is

## A spherical ball of lead, 3 cm in diameter is melted and recast into three spherical balls. The diam...

Multiple choice question

A spherical ball of lead, 3 cm in diameter is melted and recast into three spherical balls. The diameter of two of the balls are 1.5 cm and 2 cm respectively. The diameter of the third balls is

## A solid sphere of radius 10 cm is moulded into 8 spherical solid balls of equal radius, then the rad...

Multiple choice question

A solid sphere of radius 10 cm is moulded into 8 spherical solid balls of equal radius, then the radius of each ball is

## Two metallic right circular cones having their heights 4.1 cm and 4.3 cm and radii of their bases 2....

Multiple choice question

Two metallic right circular cones having their heights 4.1 cm and 4.3 cm and radii of their bases 2.1 cm each, have been melted together and recast into a sphere. The diameter of the sphere is