M.L Aggarwal book Important Question of class 10 chapter Based on Mensuration for ICSE BOARD.

A shot-put is a metallic sphere of radius given. If the density of the metal is also given, find the mass of the shot-put.

This is the Question Number 04, Exercise 17.3 of M.L Aggarwal.

Deepak BoraNewbie

# A shot-put is a metallic sphere of radius 4.9 cm. If the density of the metal is 7.8 g per cm cube, find the mass of the shot-put.

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Given radius of the metallic sphere, r = 4.9 cmVolume of the sphere, V = (4/3)r^{3}V = (4/3)×(22/7)×4.9^{3}V = 493.005V = 493 cm^{3}(approx)Given Density = 7.8 g per cm^{3}Density = Mass/ VolumeMass = Density×Volume= 7.8×493= 3845.4 gHence the mass of the shot put is 3845.4 g.