• Down the DrainDownload .TXT file Open in Data Desk ?Link
  • Methods:
  • Source: Classical calculus exercise
  • Number of Cases: 7
  • Story:

    Most water tanks have a drain plug so that
    the tank may be emptied when it’s to be moved or repaired.
    How long it takes a certain size of tank to drain depends on
    the size of the plug, as shown in the table.

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