A city uses 35,000 m3/day river water and 918,000 m3/day gro…
A city uses 35,000 m3/day river water and 918,000 m3/day groundwater. The city discharges 843,000 m3/day grey water into the river. 25,000 m3/day is lost to evaporation and pipe leaks. The rest is virtual water that the city exports. There are no other water flows. How much virtual water does the city export in m3/day? Drawing a picture may help!
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