4. Consider a hydrocyclone feed with is a slurry containing t% solids by weight, and producing two product streams - and underflow containing u% solids and an overflow containing o% solids. The correct mass flow rates of the feed, overflow and underflow are mp = 2.5 tons / hr, ^, = 1.0 tons / hr and m, = 1.5 tons / hr. The feed, overflow and underflow streams were each assayed three times for the percentage of solid content and the results are given in Table 4. Reconcile the assay results using the Lagrangian method. Table 4 Assay data of weight percent of solids Assay 1 Assay 2 Assay 3 Reconciled data Stream Feed (f%) Overflow (0%) Underflow (u%) 23.8 53.9 5.3 30.6 42.9 6.5 24.2 56.6 4.8