A cylindrical vessel of radius 0.5 m is filled with oil at the rate of 0.25  m3/minute. The rate at which the surface of the oil is rising, is (a) 1 m/min.     (b) 2 m/min.   (c) 5 m/min.   (d) 1.25 m/min.

A cylindrical vessel of radius 0.5 m is filled with oil at the rate of 0.25 pi m^3 / minute. The rate at which the surface of the oil is rising, is (a) 1 m/min. (b) 2 m/min. (c) 5 m/min. (d) 1.25 m/min.

A cylindrical vessel of radius 0.5 mts is filled with oil at the rate of 0.25 pi c.mts/min . The rate at which the surface of the oil is increasing is

A cylindrical tank of radius 10m is being filled with wheat at the rate of 314 cubic metre per hour. Then the depth of the wheat is increasing at the rate of (a) 1 m/hr (b) 0.1 m/hr (c) 1.1 m/h (d) 0.5 m/hr

A cylindrical tank of radius 10m is being filled with wheat at the rate of 314 cubic metre per hour. Then the depth of the wheat is increasing at the rate of (a) 1 m/hr (b) 0.1 m/hr (c) 1.1 m/h (d) 0.5 m/hr

A cylindrical tank of radius 10 m is being filled with wheat at the rate of 314 cubic metre per hour. Then the depth of the wheat is increasing at the rate of(A) 1 m//h (B) 0.1 m^3//h (C) 1.1 m^3//h (D) 0.5 m^3//h

Base radius of a cylindrical vessel , full of oil is 30 meters. Oil is drawn from it at the rate of 27000 m^(3)//min . Rate at which level of oil in the vessel is falling is

A cylindrical tank of radius 10 m is being filled with wheat at the rate of 314 cubic metre per hour. Then the depth of the wheat is increasing at the rate of (A) 1 m^3//h (B) 0.1 m^3//h (C) 1.1 m^3//h (D) 0.5 m^3//h

A tank is in the form of inverted cone, having height 8 meters and base radius 2 meters. Water is flowing into the tank at the rate of (1/8) m^3 /min. The rate at which the water level is rising, when the water is 2.5 meters deep is….. A) (8/ pi ) m/min B) (8/25 pi ) m/min C) (25 pi / 8) m/min D) (8/15 pi ) m/min

The radius of the base of a cone is increasing at the rate of 3 cm/min and the altitude is decreasing at the rate of 4 cm/min. The rate of change of lateral surface when the radius is 7 cm and altitude is 24cm is (a) 108pic m^2//min (b) 54pic m^2//min (c) 27pic m^2//min (d) none of these

The radius of the base of a cone is increasing at the rate of 3 cm/min and the altitude is decreasing at the rate of 4 cm/min. The rate of change of lateral surface when the radius is 7 cm and altitude is 24cm is (a) 108pic m^2//min (b) 54pic m^2//min (c) 27pic m^2//min (d) none of these