SSC MTS Model Paper 7

Question : 96 of 99

Marks: +1, -0

If the ratio of the diameters of two right circular cones of equal height be 3 : 4, then the ratio of their volume will be

Solution:

(b) Ratio of the volumesof cone

= { { 1 }/ { 3 } π r _ { 1 } ^ { 2 } h } /{ { 1 } /{ 3 } π r _ { 2 ^ { 2 } } h } = ( { r _ { 1 } } /{ r _ { 2 } } ) ^ { 2 } =( { 3 }/ { 4 } ) ^ { 2 }

= { 9 }/ { 16 }

9 : 16

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