A solid sphere of radius 15 cm is melted and recast into solid right circular cones of radius 2.5 cm and height 8 cm.

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asked Mar 16 in Class X Maths by aditya23 (-854 points)

A solid sphere of radius 15 cm is melted and recast into solid right circular cones of radius 2.5 cm and height 8 cm. Calculate the number of cones recast.

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answered Mar 16 by muskan15 (-2,499 points)

Number of  cones  = Volume of solid spheres/Volume of 1 cone

= 4/3π(15)3)/1/3π(2.5)2 × 8

= 4 × 15 × 15 × 15/2.5 × 2.5 × 8

= 180

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