In a two stage evaporator, the BPE of the stages are is $5$ and $7\mathrm{.}5C$ respectively. The steam temperature is $125C$ in the first stage and the boiling point in the second stage is $60C.$ The heat transfer coefficient in the first stage is $1080\frac{W}{m^2}.C,$ for the second stage is $800\frac{W}{m^2}.C.$

i$)$ Calculate the total temperature decline.

ii$)$ Calculate the saturated steam temperature at the second stage.