Question 1081402
For a cylinder,
{{{V=pi*R^2*L}}}
So,
{{{V[2]/V[1]=(pi*R[2]^2*L[2])/(pi*R[1]^2*L[1])}}}
{{{V[2]/V[1]=(R[2]/R[1])^2*(L[2]/L[1])}}}
{{{V[2]/V[1]=(3/3)^2*(18/6)}}}