Two liquid streams are flowing at constant rates into a xylene. Benzene ( density = 879 kg/m3), flows at a measured rate of 20.0 L/min, and the other is Toluene ( density = 866 kg/m3). The blended mixture enters a storage tank (inner diameter = 5.5 m) equipped with a sight gauge. During an interval in which no liquid leaves the storage tank, the liquid level in the tank is observed to increase by 0.15 meters over a one-hour period. Calculate the flow rate of toluene into the blender (L/min) and the composition of the tank contents (wt% benzene)