A wooden block is of length 6 metres, of breadth 15 cm and of thickness 40 cm. How many piece of wood of length 2 metres of breadth 2·5 cm and of thickness 4 cm will be got ?

How many regular pieces of wood of length 2m.breadth 2.5cm and thickness 4 cm.can be obtained from a log of wood of length 6m.,breadths 15cm and thickness 40 cm.?

Mass of a wooden piece of length 20 cm breadth 10 cm and thickness 0.5 cm is 50g. What is the density of wood ?

How many bricks of length 25 cm, breadth 15 cm and height 10 cm are required to build a wall of length 6 m height 2.5 m and breadth 0.5m ?

Find the volume of a block of wood whose length is 20cm, breadth is 10 cm and height is 8 cm.

Find the volume of a block of wood whose length is 10cm, breadth is 7 cm and height is 6cm.

A copper block length 5 cm , breadth 4 cm and thickness 2 cm is melted and made into a cylindrical rod of radius 2 mm . What is the length of the rod?

A metal block has lengths 50 cm, breadth 30cm and thickness 20cm. When current passes through it parallel to its length and parallel to its breadth, the ratio of maximum to minimum resistance of that block is