Slotted Aloha network.

All computers on C1 are connected to hub H1, and all computers on C2 are connected to hub H2. The radius of each circle is 50 meters, and the maximum rate of all links is 1 Gbps. The propagation speed in the medium is 310^8 meters/second. the network uses Slotted Aloha, where the length of each timeslot is equal to the transmission time of a single packet. Each computer generates 500 packets per second with each packet being 1000 bytes. What is the throughput of the system if there are 10 computers on the network? (Please consider propagation time)