The Knight was relaxing by the fire after fixing his window. Suddenly, there is a loud thud by the door. Out of curiosity, the Kight checks his door and sees a large block of ice on the porch. Floating inside the middle of the ice is a package and on top of the ice is a card.

Hey ya! I got the court magician to set this up for me. It's pretty cool right? (No pun intended...nevermind it's totally intended) Anyways! 15 grams of hot water is needed to melt 4 centimeters of ice.

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Sincerly,

  Jester

He measures the ice and finds that it is 45 centimeters tall, 30 centimeters long and 66 centimeters wide. The pakage inside looks roughly a quater of that size. How much hot water does the Knight need to get his package?