100 kg/hr of fresh juice (solids content = 5%) is to be processed. 90% of the fresh juice flows into an evaporator. The remainder of the fresh juice is added to the condensed juice leaving the evaporator. The mixture of evaporated and fresh juice enters a mixer at a rate 40 kg/hr where a sugar solution (solids content = 1%) is added at a rate of 10 kg/hr. 

What is the solids content of the juice mixture entering the mixer? 

What is the solids content of the mixture leaving the mixer?