[QUE/TH-07010] TH-PROBLEM

The temperature of a household refrigerator is 5$^\circ$C and
the temperature of the room in which it is located is 20$^\circ$C.
If the refrigerator is to be kept cold heat of about $3\times10^8$ J
must be pumped out every 24 hrs. If the refrigerator is 60\% as
efficient as a Carnot engine operating between reservoirs having the
temperatures 5$^\circ$C and 20$^\circ$C, how much power in Watts
will be required to operate it?
{\bf NOTE:}In the last question it is not clear whether $3\times10^6$J is
absorbed at 5$^\circ$C or rejected at 20$^\circ$C.