Correct Answer - Option 2 : 1200 kW
Concept:
The efficiency of the turbine is given by;
\(η_T =\frac{Output\ Power}{Input\ Power}\)
Calculation:
Given:
ηT = 25% = 0.25, Output Power = 300 kW
\(0.25 =\frac{300}{Input\ Power}\)
\(Input\ Power =\frac{300}{0.25}\)
Input Power = 1200 kW