. A solid consisting of a right circular cone of height
height 120 cm and radius 60 cm standing on a hemisphere of radius 60 cm is placed upright in a right circular cylinder full of water such that
it touches the bottom.Find the volume of water left in the cylinder, if the radius is 60 cm and its height is 180 cm.
Radius (r) of hemispherical part = Radius (r) of conical part =60cm
Height (h1) of conical part of solid =120cm
Height (h1) of cylinder =180cm
Radius (r) of cylinder =60cm
Volume of water left = Volume of cylinder - Volume of solid
= Volume of cylinder - (Volume of cone + Volume of hemisphere)
Hence, the correct option is (b) i.e.1131428.57cm3.