The volume of a right circular cone, with a base radius the same as its altitude, and the volume of a hemisphere are equal. The ratio of the radii of the cone to the hemisphere is
If quantity of a good demanded increases from 200 to 250 then the average income of the population increases from Rs 20,000 to Rs 30,000, find Arc Income elasticity of demand?
If the lengths of the two parallel sides of a trapezium are 8 cm and 10 cm and its area is 54 cm². Find the distance between its parallel sides (in cm).