Question: Consider a network with 2k hops, where the first k hops are on a packet switched network and the last k hops on circuit switched

Consider a network with 2k hops, where the first k hops are on a packet switched network and the last k hops on circuit switched networks. The circuit setup time is s sec, the propagation delay is d seconds per hop, the size of the total packets is p bits, and the data rate is b bps. We want to send x bits over the entire network. What is the total delay (Assume we can ignore queuing and processing delay.)?

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