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24 December 2009
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Mind Games BBC Four

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Puzzle 4  

Ox and Plough

A farmer is ploughing a field with his ox and plough. The field is 250 metres wide by 100 metres long. The furrows are two and a half metres wide and run in parallel strips lengthways across the field.

As it pulls the plough, the Ox can cover approximately one metre with each stride.

Question
How many hoof prints does the Ox leave in the entire field?
 Answer
 

Puzzles from series two
 
1. Wheels on Wheels
2. Running from the Train
3. Olympic Medals
4. Flying the Banner
5. Ox and Plough
6. Hamlet
7. The Hungry Bookworm
8. The Poet
9. Phrase Code

 Mind Games Homepage

 

 
LETTER BOX
The fast-moving
anagrams game
  Letter Box
YOUR PUZZLES
A selection of the puzzles you've emailed
Simon Singh

BBC Links

Challenges from series three

Challenges from series two

What kind of thinker are you?

Challenges from GCSE Bitesize

Test your memory

External Link

Marcus du Sautoy's official website

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