If ${}_1,{}_2$ and ${}_3$ are average packet arrival rates of

three data streams

$T$ is the average delay a packet suffers in the

network

$K$ is the number of packets in the network

The average packet delay will be given by:

a$)K$

b$)\frac{K}{{}_1+{}_2+{}_3}$

c$){}_{i}TT$

Three streams of $300,300$ and $400$ packets$/$second arrive in the

network. At any given time there are on an average $5000$ packets in the

network