Find the C.P. in each of the following: \( \begin{array} { l l } { \text { (i) } } & { \text { F.P. } = \text { Rs. } 2000 \text { , gain } = 12 \% } \\ { \text { (ii) } S . P . = R s . } & { 1,10,000 , \text { profit } = 11 \frac { 2 } { \mathrm { F } } } \end{array} \) (iii) \( S . P . = R s .980 , \) loss \( = 2 \% \)