Fish are processed into Fish meal and used as a supplemen- tary protein food. In the processing the oil is First extracted to produce wet Fish cake containing 80 wt % water and 20 wt % bone-dry cake. This wet cake feed is dried in rotary-drum dryers to give a "dry" Fish cake product containing 40 wt % water. Fi- nally, the product is Finely ground and packed. Calculate the kg/h of wet cake feed needed to produce 1000 kg/h of "dry" Fish cake product.