Acylindrical water tank is being filled with a hose. the depth of the water increases by 1 1/4 ft per hour. how many hours will it take for the water level in the tank to be 3 1/2 ft deep?

answer: the answer is (b) amie should have multiplied

step-by-step explanation: given a sphere and a cylinder with same radius and height.

let, 'r' be the radius of the cylinder and sphere and 'h' be the height of the cylinder. according to the question,

r = h.

now, the volume of the sphere will be

and the volume of the cylinder will be

therefore, we have

thus, ammie should have multiplied the volume of the sphere