Problem $1$: Consider the following network, where ONLY transmission delay is

considered.

a$.$ What is the total delay to send one packet from the source to the destination?

b$.$ What is the total delay to send two packets back$-$to$-$back from the source to the

destination?

c$.$ What is the total delay to send $P$ packets back$-$to$-$back from the source to the

destination?