BrainzOli3620 BrainzOli3620 06-06-2023 Engineering contestada A catchment area having D index value of (15) mm/hr experienced the storm of the following intension: 1) 50 mm/hr for 2 hrs 2) 30 mm/hr for 1/2 hr The resulting surface runoff was (10x106) m³. Find the catchment area.