Help Please??

3. Consider distributing a file of F bits held on a server to N peers using a P2P architecture. Let half of the peers have upload and download rates Uni = dni that are 10 times higher than the upload and download rates Uow = dow of the other half of the peers. Let u, denote the upload rate of the server, and let u, be 10 times higher than Uni. For the server, assume a fluid model where the server can simultaneously transmit to multiple peers, transmitting to each peer at different rates, as long as the combined rate does not exceed u. Each peer can transmit to only one other peer at a time. Ignore propagation delay. Assume that the server and peers know the upload and download rates of each other. Specify a distribution scheme to efficiently distribute the file. Approximately how much time does it take to distribute the file to all peers? Is your scheme better or worse for some numbers of peers than others