Consider a packet is $1500$ bytes, the propagation speed on all three links is $2\mathrm{.}5*108$m$/$s$,$ thetransmission rates of all three links are $2$ Mbps$,$ the packet switch processing delay is $3$ msec, thelength of the links is $500$m$,400$m$,100$m$.$ Calculate the end$-$to$-$end delay for the given values. $(0\mathrm{.}5$marks$)$