Volume & Surface Area Questions and Answers

Given that 1 cu.cm of marble weighs 25 gms, the weight of a marble block 28 cm in width and 5 cm thick is 112 kg. the length of the block is :

The volume of a wall, 5times as high as it is broad and 8 times as long as it is high, is 12.8 cu.metres. The breadth of the wall is :

Half cubic metre of glodsheet is extended by hammering so as to cover an area of 1 hectare. The thickness of the sheet is:

In a shower, 5 cm of rain falls. The volume of water that falls on 1.5 hectares of ground is :

A river 1.5 m deep and 36 m wide is flowing at the rate of 3.5 km per hour. The amount of water that runs into the sea per minute (in cubic metres) is :

An open box is made of wood 3 cm thick. Its external dimensions are 1.46m, 1.16 m and 8.3 dm. The cost of painting the inner surface of the box at 50 paise per 100 sq.cm is :

The dimensions of an open box are 50 cm and 23 cm. its thickness is 3 cm. If 1 cubic cm of metal used in the box weights 0.5 gms, the weight of the box is :                                                                                                                                                              

How many bags of grain can be storedin a cuboid granary 12 m x 6 m x 5 m, If each bag occupies a space of 0.48 cu. metre ?

The number of small cubes with edge 10cm that can be accomodated in a cubical box of 1 metre edge, is :

The total surface area of a cuboid is 63200 sq.cm and its length, breadth and height are in the ratio of 8: 5 : 3. The length, breadth and heght of the cuboid are respectively :