Rate

Hello Everybody today I am going to test you guys on rate. You might need that table for this question.
Question: Water from a tap flows into an empty tank at a rate of 15 litres a minute. If the tap fills the tank completely in 20 minutes, what is the volume of the tank?
               litres                Minutes
                              
                            

           Hope you enjoy it. Bye Bye. See you TOMORROW.
     Clue: 1st you have to put 15 litres in the litres box.