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 Post subject: A Maths Question!
PostPosted: Wed Dec 10, 2008 6:11 pm 
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Joined: Mon Nov 26, 2007 4:14 am
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Location: Middlesex
We are a bit confused about following question:

A box of chocolates contains 20 chocolates of which 8 are plain chocolates. If 16 of the 20 have soft centres, what can you say about how many plain chocolates there are with soft centres?

Please help all you maths gurus. I gave up on Maths 20 years ago. Will help you in VR if you help me in Maths :lol:


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 Post subject:
PostPosted: Wed Dec 10, 2008 6:15 pm 
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20 - 16 = 4

There are at least 4 plain chocolates with soft centres I think!


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 Post subject:
PostPosted: Wed Dec 10, 2008 6:16 pm 
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Joined: Mon Feb 20, 2006 1:29 pm
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Location: Berkshire
I would say at least half of the dark chocs (4) will have soft centres.


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 Post subject:
PostPosted: Wed Dec 10, 2008 6:23 pm 
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I think this is a ratio question. 16:20 or 4:5 of 20 is soft chocolates. What is 4:5 of 8? I think it can be rephrased as 4/5th of 8!


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 Post subject:
PostPosted: Wed Dec 10, 2008 6:31 pm 
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4:5 of 8= 4/5 x 8= 32/5= 6.4 which rounds up to 6. Am I right???


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 Post subject:
PostPosted: Wed Dec 10, 2008 7:36 pm 
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Sorry I don't think you can approach this with ratio -


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 Post subject:
PostPosted: Wed Dec 10, 2008 8:53 pm 
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there will be a minimum of 4 and maximum of 8 plain chocolates with soft centres


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 Post subject: Re: A Maths Question!
PostPosted: Wed Dec 10, 2008 11:32 pm 
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Joined: Fri Jul 06, 2007 8:31 pm
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My guess

At least 4 of the plain chocolates have soft centers.

Regards
SVE

_________________
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 Post subject: Re: A Maths Question!
PostPosted: Thu Dec 11, 2008 8:54 am 
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Joined: Thu Oct 11, 2007 11:51 am
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Drastic Dad wrote:
We are a bit confused about following question:

A box of chocolates contains 20 chocolates of which 8 are plain chocolates. If 16 of the 20 have soft centres, what can you say about how many plain chocolates there are with soft centres?

Please help all you maths gurus. I gave up on Maths 20 years ago. Will help you in VR if you help me in Maths :lol:



2/5 of the box are plain chocolates and 4/5 are having soft centres and according to the ratio 2/5 divided by 4/5 are the soft centred chocolates which are nothing but 1/2 of the plain that means 1/2x8=4.

so 4 are soft centred chocolates.


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 Post subject: Re: A Maths Question!
PostPosted: Thu Dec 11, 2008 5:16 pm 
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Joined: Mon Nov 26, 2007 4:14 am
Posts: 138
Location: Middlesex
naga wrote:
Drastic Dad wrote:
We are a bit confused about following question:

A box of chocolates contains 20 chocolates of which 8 are plain chocolates. If 16 of the 20 have soft centres, what can you say about how many plain chocolates there are with soft centres?

Please help all you maths gurus. I gave up on Maths 20 years ago. Will help you in VR if you help me in Maths :lol:



2/5 of the box are plain chocolates and 4/5 are having soft centres and according to the ratio 2/5 divided by 4/5 are the soft centred chocolates which are nothing but 1/2 of the plain that means 1/2x8=4.

so 4 are soft centred chocolates.


You are right. 4 is the answer. I was wrong and reading too much into it!


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