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How long will it take?

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#1 MikeD


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Posted 24 January 2012 - 03:29 PM

There is a pool of water that, when in full sunlight, increases in temperature by one degree Celsius in ten minutes.

At 12:00pm the pool is half covered by the shade of a tree. And by 13:00pm the pool is in full sun. (So that between 12 and 1 pm the pool is partially cover by some shade.) It can be assumed that the shade covers half the pool at 12:30 and so on.

If the pool of water is 28 degree Celsius at 11:50am, how long will it take to increase it 32 degrees Celsius?

Spoiler for Tip 1

Spoiler for Tip 2

Edited by MikeD, 24 January 2012 - 03:29 PM.

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hi again, everyone. Nice to be back home. :)

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