2.1.1 Rebecca takes part in competition and has to drink 75 ml of water every 30 minutes. This competition is to make the people aware of the needs of children. The competition started on Monday morning at 08:00 at finished on Thursday afternoon. At the end of the day, she drinks her last 75 ml water at 21:00 and she starts again at 07:00 the next morning. How many litres of water did she drink in total?
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