Sao Tech Construction has recently won a contract to build sewage pipes throughout a new township outside Kuching. The diagram below shows the possible paths between the sewage treatment plant (denoted by node 1) and all the main areas of the township. Use the minimal spanning approach to find the least amount of sewage pipes to facilitate sewage flow from all the main areas of the township to the sewage treatment plant. Calculate the total meters of pipes required. What is the total cost of pipes if one meter of pipe is priced at RM 24.90?

350 410 400 390 1393 460 450 350 380) 1420 580 570 500 550 50 430 730 520 1400 500 440 690 520 5)