In the following sequence:

1/1, 1/2, 1/3, 3/3, 1/4, 3/4, 1/5, 3/5, 5/5, 1/6, 3/6, 5/6, 1/7, 3/7, 5/7, 7/7, 1/8, ...,

What is the 2011th number?

(Originally published in our September 2011 Newsletter, prize money was RM100)

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Honour Roll

The following people submitted the correct answer (in the order of submission):

  1. lim yu wei
  2. Ling
  3. KENNY
  4. Liyana AS
  5. Sweet Yee
  6. NAA
  7. Lawrence Wong
  8. Why
  9. Nicholas
  10. kokweng

Also see the all-time Top 10 Brain Teaser Solvers.

Modified 4/13/2013 by Loo Hai Teh

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