Question

An iron pillar has some part in the form of a right circular cylinder and remaining in the form of a right circular cone. The radius of base of each of cone and cylinder is $8cm$. The cylindrical part is $240cm$ high and the conical part is $36cm$ high. Find the weight of pillar, if $1{cm}^3$ of iron weight $10g$.

• A. $826.65kg$
  
• B. $705.23kg$
  
• C. $506.88kg$
• D. none of these

Answer 1

The correct option is C $506.88kg$

Given - $10g$

Mass $=Density\times Volume$

$=10\times 50688=506880g$.

$=506.88kg$