Suppose Host A wants to send a file of size F = 1500 bytes to Host B. The path from Host A to Host B has three links having rates R1 =500 kbps, R2 = 1 kbps, and R3 = 2 Mbps, respectively. Assume there is no other traffic on this network. Assume negligible processing delays. Assume the packets have a size of L = 1020 bytes (20 bytes are for header - carry no data from the file - 1000 bytes for payload). Assume no other traffic in the network and negligible propagation delay. Answer the following question:

What is the end-to-end delay from the time Host A starts transmitting the third packet to the time when the file is completely received at Host B?