Consider the scenario shown below. The four pairs share a common middle hop with a transmission capacity of $R=300$ Mbps$.$ The four links from the servers to the shared link have a transmission capacity of $R_5=50Mbps.$ Each of the four links from the shared middle link to a client has a tilinsmission capacity of $R_C=90Mbps.$

What is the maximum achievable end$-$end throughput for each of four client$-$toserver pairs, assuming that the middle link is fairly shared $($divides its transmission rate equally$)$ and all servers are trying to send at their maximum rate?

Your answer: Write only the number. The unit is Mbps