Correct Answer - Option 1 : 855 hectares / cumec
Concept:
The relation between Duty, Delta and Base period are as follows:
\({\rm{\Delta }} = \frac{{864B}}{D}\;cm\)
\(\rm{}\Delta = \frac{{Base\;Period\; \times Depth\;of\;Watering}}{{Interval\;of\;Watering}}\)
Δ → depth of water required (cm)
D → Duty (hectares per cumec)
B → Base period (days)
Calculations:
\({D} = \frac{{864B}}{\Delta}\;=\frac{{864\times95}}{96}=855\;hectares/cumec\)