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Puzzle ZOKL 



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Sports Day - Logic Puzzles

During the recent BrainBashers school sports day, four students were competing in the 400 metres hurdles.

Official figures mysteriously went missing just after the event, however, various spectators could remember the following information.

Alex won and wore red.
The student wearing number 1 came third.
Billie beat the student in yellow, but wasn't wearing number 2.
Only one student finished in the same position as the number they wore, but they didn't wear red.
Emery beat the student wearing number 3, and Glen wore yellow.
The student in green wore number 2.
A spectator remembered that one student wore blue, but couldn't remember anything else about them.
Can you determine the positions the students finished in, along with the numbers and colours they wore?

Puzzle Copyright © Kevin Stone

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Answer
# Name    Wore  Colour
1 Alex    4     Red
2 Emery   2     Green
3 Billie  1     Blue
4 Glen    3     Yellow

Reasoning
(Clue 1) Alex won and wore Red. (Clue 5) Glen wore Yellow. (Clue 3) Billie wasn't wearing number 2, and (Clue 6) number 2 wore Green, so must be Emery. Leaving Billie in Blue.
   # Name    Wore  Colour
   1 Alex          Red
   ? Glen          Yellow
   ? Emery   2     Green
   ? Billie        Blue

(Clue 2) Emery didn't come 3rd, and Alex won, so (Clue 5) Emery can't have come last, so must have come 2nd.
   # Name    Wore  Colour
   1 Alex          Red
   2 Emery   2     Green
   ? Glen          Yellow
   ? Billie        Blue

(Clue 3) Billie can't have been last, so came 3rd and (Clue 2) wore 1, leaving Glen in last place.
   # Name    Wore  Colour
   1 Alex          Red
   2 Emery   2     Green
   3 Billie  1     Blue
   4 Glen          Yellow

(Clue 5) Emery beat the student wearing 3, so Glen must have worn 3. Leaving Alex wearing 4.
   # Name    Wore  Colour
   1 Alex    4     Red
   2 Emery   2     Green
   3 Billie  1     Blue
   4 Glen    3     Yellow

 

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