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Author Offer for someone who is good at maths
Eck
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Registered: 17th Apr 06
Location: Lundin Links, Fife
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10th Jan 08 at 02:09   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by All Torque
*Bins laptop*

Thanks Eck Now care to explain why?


It's easy Pete



























































1 out of 2 chance in being correct.

Said 4 hail mary's, then guessed
All Torque
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Registered: 17th Nov 05
Location: Milton Keynes Drives: Ford Focus TDCi
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10th Jan 08 at 02:09   View User's Profile U2U Member Reply With Quote
Was I even the slightest bit close?
Ian
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Registered: 28th Aug 99
Location: Liverpool
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10th Jan 08 at 02:16   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by All Torque
When you understand how to describe them, you will see that 31 of the
100 lockers are still open (without having to work it all out!)."
This but I'm stuck on - I make it 10 open - the set of perfect squares in the problem.

Not sure what other 21 numbers have an odd number of factors?

If any?

Where did you get that?
All Torque
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Registered: 17th Nov 05
Location: Milton Keynes Drives: Ford Focus TDCi
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10th Jan 08 at 02:32   View User's Profile U2U Member Reply With Quote
Copied it from google, but the question there was 1000 lockers, not 100

whoops
stevegreetham
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Registered: 30th Oct 03
Location: Grimsby/Sheffield
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10th Jan 08 at 10:06   View User's Profile U2U Member Reply With Quote
cheers guys, appreciate your help
Ian
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Registered: 28th Aug 99
Location: Liverpool
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10th Jan 08 at 12:35   View Garage View User's Profile U2U Member Reply With Quote
The 1000 locker problem is not as elegant as 1000 itself is not a perfect square. Closest ones are 961 and 1024.

Locker 1000 is closed.
All Torque
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Registered: 17th Nov 05
Location: Milton Keynes Drives: Ford Focus TDCi
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10th Jan 08 at 12:49   View User's Profile U2U Member Reply With Quote

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