Similar to the picture above, we have $3$ links connecting a client to a

server with $2$ routers in$-$between and we want to find the end$-$to$-$end

delay. Link $1$ has a transmission rate of $10$ Mbps and a link length of

$1km.$ Link $2$ has a transmission rate of $10Mbps$ and a link length of

$1000km.$ Link $3$ has a transmission rate of $1000Mbps$ and a link

length of $2km.$ Assuming the length of a packet is $500$ bytes and the

speed of light propagation delay on each link is $3{10}^8\frac{m}{sec},$ what

is the TOTAL delay $($second$)$ of the figure above?