Question of the Day (14Jan20)


00 : 00 A water tank is in the shape of an inverted right circular cone. The tank is standing on horizontal ground on its vertex. The axis of the conical take is perpendicular to the horizontal surface of ground. The height of the tank is 3 m. The tank is completely filled with water, and the volume of the water is 27 L. There are three outlet taps, one at the bottom, second at a height of 1 m, and the third at a height of 2 m. The rate of outflow of each of the three taps is 1 L/min. If all the three taps are opened simultaneously at 12 noon, at what approximate time will the tank get completely empty?
