Quickie

Engage in some light-hearted challenges to test your knowledge and wits

Quickie

Postby johnh » 11 Jul 2018, 15:50

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! :shock:
The Prime Minister has been in our house.
User avatar
johnh
Howard Wilkinson's military attaché
 
Posts: 5828
Joined: 24 Jan 2012, 15:26

Re: Quickie

Postby MOT1964 » 11 Jul 2018, 16:11

I think it's 49 minutes, although I could be wrong because A Level Maths is now a distant memory for me ........ :?
MOT1964
Jimmy Armfield's cardigan knitter
 
Posts: 1220
Joined: 29 Jan 2011, 00:04

Re: Quickie

Postby Sniffer » 11 Jul 2018, 16:22

Who'd be daft enough to stay in the stadium if you could see you were going to drown?
Sniffer
Dick Ray's Talent Spotter
 
Posts: 1699
Joined: 17 Feb 2013, 17:03

Re: Quickie

Postby Selby White » 11 Jul 2018, 16:57

MOT1964 wrote:I think it's 49 minutes, although I could be wrong because A Level Maths is now a distant memory for me ........ :?


Agree with that except it would be 112% full :shock:
Keep your face always toward the sunshine - and shadows will fall behind you.
User avatar
Selby White
LUFCTALK Moderator
 
Posts: 7223
Joined: 25 Mar 2012, 11:32

Re: Quickie

Postby kk_white » 11 Jul 2018, 17:47

Isn't it an exponential growth question? Just because you double the drops, doesnt mean you double the percentage...
User avatar
kk_white
Jimmy Armfield's cardigan knitter
 
Posts: 1297
Joined: 12 Aug 2009, 14:23
Location: Galway

Re: Quickie

Postby johnh » 12 Jul 2018, 11:20

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. :clap:
The Prime Minister has been in our house.
User avatar
johnh
Howard Wilkinson's military attaché
 
Posts: 5828
Joined: 24 Jan 2012, 15:26

Re: Quickie

Postby MOT1964 » 12 Jul 2018, 14:40

johnh 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. :clap:


Cheers johnh :thumbup:
MOT1964
Jimmy Armfield's cardigan knitter
 
Posts: 1220
Joined: 29 Jan 2011, 00:04

Re: Quickie

Postby Davycc » 14 Jul 2018, 14:51

Ahem... can we let the water out yet, we've a game on later?
One needs to be loved to win, not win to be loved. MB
User avatar
Davycc
Don Revie's bingo caller
 
Posts: 8218
Joined: 03 Aug 2011, 18:09
Location: Wet West Britain

Re: Quickie

Postby johnh » 14 Jul 2018, 16:02

Davycc wrote:Ahem... can we let the water out yet, we've a game on later?


No point, your game would be rained off anyway. :D
The Prime Minister has been in our house.
User avatar
johnh
Howard Wilkinson's military attaché
 
Posts: 5828
Joined: 24 Jan 2012, 15:26

Re: Quickie

Postby Davycc » 14 Jul 2018, 17:52

johnh wrote:
Davycc wrote:Ahem... can we let the water out yet, we've a game on later?


No point, your game would be rained off anyway. :D


Fair point John, fair point :D
One needs to be loved to win, not win to be loved. MB
User avatar
Davycc
Don Revie's bingo caller
 
Posts: 8218
Joined: 03 Aug 2011, 18:09
Location: Wet West Britain

Next

Return to Quizzes & games

Who is online

Users browsing this forum: No registered users and 3 guests