Games

Q

You have a piece of paper and a bunch of blue and red pens. Start with a blue pen and write down all the positive integers in order by spelling them out correctly using the English alphabet: ONE, TWO, THREE, FOUR, etc. Use the red pen the first time you encounter the letter “C.” Assuming that it takes 10 seconds on average to spell out each integer, how long will it before you need the red pen?
 
Please submit your solution here or email it to John Kador jkador@jkador.com using the subject line “C Note.” Deadline is Nov. 1, 2013. One entrant with the correct answer (or a creative alternative) will receive a signed copy of John Kador’s How to Ace the Brainteaser Job Interview. Good luck to all.

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