1) The radius of a sphere is r units.Each of the base andthe height of a right circular cylinder is also r units.What is the ratio of the volume of the shere to that of the cylinder? A) 4:3 B) 3:4 C) 2:3 D) 3:2 Answer: Option AExplanation:Volume of sphere$=\frac{4}{3}\pi r^{3}$and Volume of cylinder$=\pi r^{2}h=\pi r^{3}$ Required ratio$=\frac{4}{3}\pi r^{3} : \pi r^{3}$ $=\frac{4}{3} :1=4:3$
