Question 1206989
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The fraction of water that left in the tank, is  {{{(1000-120*5)/1000}}} = {{{400/1000}}} = {{{2/5}}}.    <U>ANSWER</U>


In this formula, 1000 is 1000 mL, which represents one liter.

120 represents 120 seconds, or 2 minutes.
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Solved.



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The correct abbreviation for milliliter is "mL," with a lowercase "m" and an uppercase "L." 


The common abbreviation for liter is L.


Writing "1l", as in your post, is confusing and demonstrates ignorance of the standard format and disrespect to readers.