Oz's Question of the day #32(1/7/09)

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OZXJR

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A high school has a strange principal. On the first day, he has his students perform an odd opening day ceremony:

There are one thousand lockers and one thousand students in the school.
The principal asks the first student to go to every locker and open it.
Then he has the second student go to every second locker and close it.
The third goes to every third locker and, if it is closed, he opens it, and if it is open, he closes it.
The fourth student does this to every fourth locker, and so on.
After the process is completed with the thousandth student, how many lockers are open?


PM answers please.
 
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Excel didn't help me as much as I thought, haha. Good thing I listened to teacher when she said i'd have to use math when I grew up!!
 
Answer:31

Rep and casino cash winners:db43 and Gastonj


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Congrats guys and thanks to all that played.

Please read the sticky at the top of QOTD,if you win one you have to sit out the next,thanks.
 
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