(iii)\[~{{1}^{3}}:\text{ }{{2}^{3}}\]
We know that
Triplicate ratio of \[{{1}^{3}}:\text{ }{{2}^{3}}~=\text{ }{{({{1}^{3}})}^{3}}:\text{ }{{({{2}^{3}})}^{3}}~=\text{ }{{1}^{3}}:\text{ }{{8}^{3}}~=\text{ }1:\text{ }512\]
(iii)\[~{{1}^{3}}:\text{ }{{2}^{3}}\]
We know that
Triplicate ratio of \[{{1}^{3}}:\text{ }{{2}^{3}}~=\text{ }{{({{1}^{3}})}^{3}}:\text{ }{{({{2}^{3}})}^{3}}~=\text{ }{{1}^{3}}:\text{ }{{8}^{3}}~=\text{ }1:\text{ }512\]