alleryA hollow sphere has outer radius 3 cm and inner radius 2 cm. Material volume?
A20π/3 cm³
B108π/3 cm³
C100π/3 cm³
D76π/3 cm³
Answer & Solution
Correct answer: D. 76π/3 cm³
Subtracting the inner volume from the outer gives 4π(27 − 8)/3 = 76π/3 cm³.
Keep practising Mensuration: Surface Areas & Volumes
Browse all Mensuration: Surface Areas & Volumes questions for ICSE Class 10, or explore more Mathematics topics.
Related questions
A cylinder r=3,h=8 cm loses 1/9 volume on recasting into radius-2 cm balls. Number?A right cone has radius 5 cm and slant height 13 cm. Its vertical height?A sphere's surface area divided by volume is 1 cm⁻¹. Its radius?A cylinder has volume 1540 cm³ and curved area 440 cm². Its radius?What height gives a right cone of radius r the volume of a radius-r hemisphere?A cylinder's radius doubles while height halves. New volume:old volume?A cylinder's radius increases 20%; its height stays fixed. Volume increases by?No outflow: water rises 2 cm/min in a radius-7 cm cylinder. Inflow, π=22/7?