assume that:

d$\_($queue $)$prop$(1)/((1-($R$\_($in $))/($R$\_($out $)))^(3))-1$ in msQ$4.$ You discover an old network in a dusty closet at the School of Computing. There are two identical

routers connecting two old PCs$.$ You measure the cabling connecting everything together and find that

the total length from one computer to the other computer is $20$ meters. You also confirm that the cable is

copper$-$based $($meaning data travels at $2{10}^8\frac{m}{s}).$ You transfer a $20kB$ file between the machines and

measure that it takes $90$ seconds to transfer the file $($these are OLD machines!$).$ What is the average

throughput of this system? Report your answer in bps rounded to the nearest bit. Show your work.