This is a coded approach to a problem which was presented at a recent Bebras Computational Thinking workshop. Click 'See inside' to access the simple code. Note (1) A code comment on car 1 is one key to the solution [Every ONE TENTH of a second in the code represents one minute in the story.] Note (2) On paper, write out a short sequence of multiples of 3, then multiples of 5 and 7. Next, write out the first 8 from the three sequences in ascending order. Use these eight numbers to edit the code in the 'wait' block.
Original puzzle © Maynooth University 2020