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SASMO 2019 Grade 7 Question 7

SASMO · SASMO 2019 Grade 7

Question 7

In a fully connected network, each pair of nodes is joined by exactly one connection. The illustrated 5-node network has 10 connections. How many connections does a fully connected 10-node network have?

Question illustration
  1. 45
  2. 55
  3. 20
  4. 66
  5. None of the above