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IMSO 2021 Mathematics - International Essay Question 3

IMSO Maths · IMSO 2021 Mathematics - International Essay

Question 3

Four runners (A, B, C and D) participated in a race. Before the event, all four of them (I, II, III and IV) anonymously predicted the final rankings as shown in the table below.

Question illustration

I and III each got two positions correct, while II and IV each got one position correct. Determine the final placings of the four participants.