A Persian wheel discharges water at the rate of 11,000 lph and works for 8 hours each day. Estimate the area commanded by the water lift if the average depth of irrigation is 8 cm and irrigation interval is 15 days.
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To perform volume calculations quickly, convert discharge rates to \( \text{m}^3/\text{hour} \) early by dividing the value in litres by 1,000:
\[ 11,000 \text{ lph} = 11 \text{ m}^3/\text{hour} \]
This keeps the numerical values manageable and reduces calculation errors.