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Author Todays mind teaser at work...
A2H GO
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Registered: 14th Sep 04
Location: Stoke
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5th Mar 13 at 15:25   View User's Profile U2U Member Reply With Quote
Irene bought some school supplies. In the first shop she spent half the money she had plus £6. In the second shop she spent one-third of what was left plus £6. In the last shop she spent one-fourth of what was left and came home with £6. How much did she start out with?

Any suggestions?
Ellis
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Registered: 11th Sep 07
Location: Aberdeenshire
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5th Mar 13 at 15:30   View User's Profile U2U Member Reply With Quote
£54
Stu
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Registered: 3rd May 00
Location: Madchester UK Drives: 2014 BMW M135i
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5th Mar 13 at 15:33   View User's Profile U2U Member Reply With Quote
http://www.jiskha.com/display.cgi?id=1330357260
Whittie
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Registered: 11th Aug 06
Location: North Wales Drives: BMW, Corsa & Fiat
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5th Mar 13 at 15:34   View User's Profile U2U Member Reply With Quote
She started with x

after store 1, she had x/2-6
after store 2, she had (x/2-6)* 2/3 - 6
after store 3, she had ((x/2-6)* 2/3 - 6)* 3/4 = 6

((x/3)-4-6)* 3/4 = 6
(x/3 - 10) = 8
x/3 - 10 = 8
x/3 = 18
x = 54

So, she started out with £54
At store 1, she spent 27+6 = 33, leaving £21
At store 2, she spent 7+6=13, leaving £8
At store 3 she spent 2, leaving £6
A2H GO
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Registered: 14th Sep 04
Location: Stoke
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5th Mar 13 at 15:37   View User's Profile U2U Member Reply With Quote
Didn't realise they'd had it off the net

Ah well confirms my answer's right.
Whittie
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Registered: 11th Aug 06
Location: North Wales Drives: BMW, Corsa & Fiat
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5th Mar 13 at 15:39   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by A2H GO
Didn't realise they'd had it off the net

Ah well confirms my answer's right.


Yeah, yeah
Robin
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Registered: 7th Jan 04
Location: Northants Drives: Clio 182 Cup
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5th Mar 13 at 15:39   View Garage View User's Profile U2U Member Reply With Quote
One fourth?

En Englaise sil vous plait.
Jamie Walby
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Registered: 15th Nov 04
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5th Mar 13 at 15:39   View User's Profile U2U Member Reply With Quote
Yeah that confirms my answer was right too.
Hammer
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Registered: 11th Feb 04
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5th Mar 13 at 15:52   View User's Profile U2U Member Reply With Quote
I thought algebra was useless and never used in every day life?
RichR
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Registered: 17th Oct 01
Location: Waterhouses, Staffordshire
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5th Mar 13 at 16:18   View Garage View User's Profile U2U Member Reply With Quote
noone (bar me) in my office got the following correct yesterday but I work with a bunch of 'tards:

1+1+1+1+1
1+1+1+1+1
1+1x0+1 = ?

[Edited on 05-03-2013 by LiVe LeE]
Wrighty_1988
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Registered: 30th Jun 06
Location: South Yorkshire
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5th Mar 13 at 16:20   View User's Profile U2U Member Reply With Quote
5,5,1?
RichR
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5th Mar 13 at 16:20   View Garage View User's Profile U2U Member Reply With Quote
there's only 1 answer
Wrighty_1988
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Location: South Yorkshire
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5th Mar 13 at 16:21   View User's Profile U2U Member Reply With Quote
How are the 3 lines connected?
ashleh
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Registered: 23rd Dec 08
Location: Nottingham
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5th Mar 13 at 16:27   View User's Profile U2U Member Reply With Quote
It's separated on 3 lines for some reason...the answer is 0 .
RichR
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5th Mar 13 at 16:30   View Garage View User's Profile U2U Member Reply With Quote
That's the point; the lines have nothing to do with one another, the only equation is the last line and the answer (using BODMAS) is 2

In the office I had one guy tell me that 12x0 = 12
neil h
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Registered: 28th Sep 06
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5th Mar 13 at 16:32   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by LiVe LeE
noone (bar me) in my office got the following correct yesterday but I work with a bunch of 'tards:

1+1+1+1+1
1+1+1+1+1
1+1x0+1 = ?

[Edited on 05-03-2013 by LiVe LeE]


I presume you mean 1+1+1+1....x0+1=?

quote:
Originally posted by ashleh
It's separated on 3 lines for some reason...the answer is 0 .


No its not. The answer is 1.... Or 12 if you want to be awkward.

[Edited on 05-03-2013 by neil h]
3CorsaMeal
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Registered: 11th Apr 02
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5th Mar 13 at 16:39   View User's Profile U2U Member Reply With Quote
Tell Irene she should get receipts then she would bloody well know herself and save everyone the hassle
VINCEYBOY
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Registered: 28th Sep 12
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5th Mar 13 at 17:07   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by LiVe LeE
noone (bar me) in my office got the following correct yesterday but I work with a bunch of 'tards:

1+1+1+1+1
1+1+1+1+1
1+1x0+1 = ?

[Edited on 05-03-2013 by LiVe LeE]


30?

if you line it up on one line you actually get:

1+1+1+1+11+1+1+1+11+1x0+1

then using bodmas it would be 30?


[Edited on 05-03-2013 by VINCEYBOY]
Balling
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Registered: 7th Apr 04
Location: Denmark
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5th Mar 13 at 17:09   View Garage View User's Profile U2U Member Reply With Quote
quote:
Originally posted by VINCEYBOY
30?


VINCEYBOY
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Registered: 28th Sep 12
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5th Mar 13 at 17:12   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Balling
quote:
Originally posted by VINCEYBOY
30?


yeah there are actually 11s look above. ^^^
A2H GO
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Registered: 14th Sep 04
Location: Stoke
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5th Mar 13 at 17:26   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Whittie
quote:
Originally posted by A2H GO
Didn't realise they'd had it off the net

Ah well confirms my answer's right.


Yeah, yeah


I got it by trial and error, none of that algebra shiz.
Balling
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Registered: 7th Apr 04
Location: Denmark
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5th Mar 13 at 17:26   View Garage View User's Profile U2U Member Reply With Quote
That's not how a line break works.
VINCEYBOY
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Registered: 28th Sep 12
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5th Mar 13 at 17:36   View User's Profile U2U Member Reply With Quote
quote:
Originally posted by Balling
That's not how a line break works.


having a random bunch of 1+1+1+... above a sum is also not how it works!
So what is the answer? lol
taylorboosh
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Registered: 3rd Apr 07
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5th Mar 13 at 17:49   View User's Profile U2U Member Reply With Quote
I think 1
Balling
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Registered: 7th Apr 04
Location: Denmark
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5th Mar 13 at 18:02   View Garage View User's Profile U2U Member Reply With Quote
Jesus wept...
quote:
Originally posted by LiVe LeE
the lines have nothing to do with one another, the only equation is the last line and the answer (using BODMAS) is 2

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