The uniform precipitation over a catchment area covering 80 km2 received a total precipitation of 80 mm in a month. 60% of the precipitation reached the reservoir. The spread of reservoir during that month was 2.5 km2. The irrigation canal discharges at a constant rate of 1.1 m3/s. If the seepage losses were 60% of the evaporation losses, find the daily rate of evaporation.