Spotted this in a business article, puzzle set by an economist.
Imagine you are in a waterproofed football stadium. The referee drops a single drop of water on the centre spot. One minute later he drops two spots there. Another minute later 4 drops there and so on. How long would it be before the stadium was full of water and everyone drowned?
(clue - after 45 minutes the stadium is 7% full.)
PS I know this can't be 'worked out' but requires 'best guesses'.
PPS Don't ask me how he worked it out. After all, he is an economist!
Quickie
Re: Quickie
I think it's 49 minutes, although I could be wrong because A Level Maths is now a distant memory for me ........
Re: Quickie
Who'd be daft enough to stay in the stadium if you could see you were going to drown?
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Re: Quickie
Agree with that except it would be 112% fullMOT1964 wrote:I think it's 49 minutes, although I could be wrong because A Level Maths is now a distant memory for me ........
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Re: Quickie
Isn't it an exponential growth question? Just because you double the drops, doesnt mean you double the percentage...
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Re: Quickie
MOT1964 wrote:I think it's 49 minutes, although I could be wrong because A Level Maths is now a distant memory for me ........
49 minutes is right. Well done MOT1964.
I once played against Don Revie.
Re: Quickie
Cheers johnhjohnh wrote:MOT1964 wrote:I think it's 49 minutes, although I could be wrong because A Level Maths is now a distant memory for me ........
49 minutes is right. Well done MOT1964.
Re: Quickie
Ahem... can we let the water out yet, we've a game on later?
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Re: Quickie
No point, your game would be rained off anyway.Davycc wrote:Ahem... can we let the water out yet, we've a game on later?
I once played against Don Revie.
Re: Quickie
Fair point John, fair pointjohnh wrote:No point, your game would be rained off anyway.Davycc wrote:Ahem... can we let the water out yet, we've a game on later?
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The Funny Corner
When Santa Got Stuck Up The Chimney
The Thrones Murders
The Funny Corner
When Santa Got Stuck Up The Chimney
The Thrones Murders