The figure shows a pipe network with initial estimated discharge to find the actual discharge in each pipe using Hardy$-$Cross method. The pipes' flow are all in Liters per second $($L$/$s$),$ and the Darcy's$-$Wiesbach constants for all pipes are shown in the figure. If the input discharge at Junction a $Q_a=89\mathrm{.}8\frac{L}{s},$ answer the five following questions:

$\backslash$table$[[$Pipe$,K$