Q. 153.9( 8 Votes )

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Answer :

Given,

Height of cylinder R = 2.8m = 280cm

Radius =

Height of cone = 42cm

Volume of pillar = volume of cone + volume of cylinder

Given that,

Weight of 1 cm³ iron = 7.5gm

Weight of the pillar = 92400 × 75

Weight of the pillar = 693000g

= 693kg

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