How many coins 1.75 cm in diameter and 2 mm thick must be melted to form a cuboid `11\ c mxx10\ c mxx7\ c m` ?

How many silver coins, 1.75\ cm in diameter and of thickness 2 \ mm , must be melted to form a cuboid of dimensions 5. 5\ c mxx\10\ c m\xx\3. 5\ c m ?

Find 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. (a) 430 (b) 440 (c) 450 (d) 460

Find 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.

Find 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.

How many spherical bullets each of 5 cm in diameter can be cast from a rectangular block of metal 11\ d mxx1\ mxx5\ d m ?

How many shots each having diameter 3 cm can be made form a cuboidal lead solid of dimensions 9 cm xx 11 cm xx 12 cm ?

A cistern, internally measuring 150\ c mxx120\ c mxx110\ c m has 129600\ c m^3 of water in it. Porous bricks are placed in the water until the cistern is full to the brim. Each brick absorbs one seventeenth of its own volume of water. How many bricks can be put in without the water overflowing, each brick being 22. 5\ c mxx7. 5\ c mxx6. 5\ c m ?

12 spheres of the same size are made from melting a solid cylinder of 16 cm diameter and 2 cm height. The diameter of each sphere is (a) sqrt(3)c m (b) 2\ c m (c) 3 cm (d) 4 cm

A rod of certain metal is 1.0 m long and 0.6 cm in diameter. Its resistance is 3.0 xx 10&(-3) ohm. Another disc made of the same metal is 2.0 cm in diameter and 1.0 mm thick. What is the resistance between the round faces of the disc?

How many planks each of which is 2m long, 2. 5\ c m\ broad and 4c m\ thick can be cut-off from a wooden block 6m\ long, 15\ c m broad and 40 c m thick?