smc-1137-20-Table

Networks, STD2 N2 SM-Bank 28

In central Queensland, there are four petrol stations , , and . The table shows the length, in kilometres, of roads connecting these petrol stations.

Construct a network diagram to represent the information in the table. (2 marks)

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A petrol tanker needs to refill each station. It starts at Station and visits each station.

Calculate the shortest distance that can be travelled by the petrol tanker. In your answer, include the order the petrol stations are refilled. (2 marks)

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In a town, there are four cafes , , and . The table shows the distances, in metres, of paved footpath connecting the cafes.

A coffee supplier needs to visit each cafe.

What is the shortest distance she needs to walk along the paved footpath if she starts at cafe ?

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The following table shows the travelling time, in minutes, between towns which are directly connected by roads.

A dash indicates that towns are not directly connected.

Draw a network diagram showing the information in this table. (2 marks)

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What is the shortest travelling time between A and E? (1 mark)

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