A cylindrical vassel of radius 4m contains water.A solid sphere of radius 3m is lowered into water until it is completely immersed.Water level in the vessel will rise by

The ratio of outer and inner perimeters of a circular path is 23:22.If the path is 5m wide,diameter of the inner circle is

The sides of a triangular field are 41m,40m and 9m.The number of rose beds that can be prepared in the field if each rose bed on an average,needs 900sq.m space is

If each interior angle of a regular polygon is 135°,then the number of diagonals of polygon is equal to

If three metalllic spheres of radii 6cm,8cm and 10cm are melted to form a single sphere,then the diameter of the new sphere will be

If x+y+z=0 and x³+y³+z³+3xyz is equal to