A vessel contains mixture of tin and copper in the ratio of 2 : 3. Some amount of mixture is taken out and 28 gm copper is added to the remaining mixture so that amount of copper becomes `66 2/3`% in the new mixture. If` 12 1/2 `% of initial mixture is 22.5 gm then, find what amount of tin was taken out from the initial mixture?

Options

A. `16 gm`
B. `14 gm`
C. `12 gm`
D. `18 gm`

Answer

A