Aunt Li prepared a kind of washing water, which was made up of washing liquid and water at a concentration of 10mL: 1L. How many liters of washing water can be prepared for the existing 30mL washing liquid?
李阿姨配制一种洗洁水，由洗洁液和水按10mL：1L的浓度配成．现有30mL的洗洁液，可以配制多少升的洗洁水？
<result>3.03</result>