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BEBRAS 2019 Grade 5-6 Round 2 Ext Question 13

BEBRAS · BEBRAS 2019 Grade 5-6 Round 2 Ext

Question 13

Aqil secretly hides a toy car under one of four numbered boxes.

Question illustration

Aidel must find it using Aqil’s code. Digits are read in pairs: for example, 1324 first swaps positions 1 and 3, so each becomes the other’s new position; then it swaps positions 2 and 4 in the same way. Aqil starts with the car under box 3 and gives this code:

1234132414231234

Under which numbered position should Aidel look?
  1. First box
  2. Second box
  3. Third box
  4. Fourth box