Go to navigation
It is currently Thu Dec 08, 2016 12:12 am

All times are UTC




Post new topic Reply to topic  [ 10 posts ] 
Author Message
PostPosted: Mon Dec 12, 2011 8:27 pm 
Offline

Joined: Tue Jun 02, 2009 9:28 pm
Posts: 2439
I heard an interview with Johnny Ball on the radio and thought I'd share this maths question with you.

I have two coins. They add up to 15p. One of them is not a 10p piece. What are the two coins?

I shall post the answer tomorrow.

I was pleased to say that my DS got it almost straight away. I couldn't work it out. :(


Top
 Profile  
 
PostPosted: Mon Dec 12, 2011 8:32 pm 
Offline

Joined: Fri Sep 15, 2006 8:51 am
Posts: 8113
I suppose it is something to do with one of them not being a 10p piece.... doesn't say the other one can't be a10p! :lol:


Top
 Profile  
 
PostPosted: Mon Dec 12, 2011 11:01 pm 
Offline

Joined: Thu Dec 18, 2008 10:12 am
Posts: 3758
Location: Berkshire
I also heard it and found it absolutely awful, nothing to do with any kind of reasoning or mathematical ability whatsoever.
Just a joke....


Top
 Profile  
 
PostPosted: Tue Dec 13, 2011 4:50 pm 
Offline

Joined: Fri Oct 30, 2009 11:08 pm
Posts: 1226
Actually a similar question to this was on a paper of questions my DD was given at school in critical thinking!


Top
 Profile  
 
PostPosted: Tue Dec 13, 2011 7:41 pm 
Offline

Joined: Tue Jun 02, 2009 9:28 pm
Posts: 2439
HM you are too quick and too clever, and correct. The other coin is a 10p and the first coin is a 5p pence piece.


Top
 Profile  
 
PostPosted: Tue Dec 13, 2011 7:54 pm 
Offline

Joined: Mon Jun 18, 2007 2:32 pm
Posts: 6966
Location: East Kent
actually I think it's fairly good and makes you examine the evidence..quite mathematical


Top
 Profile  
 
PostPosted: Tue Dec 13, 2011 7:58 pm 
Offline

Joined: Mon Feb 12, 2007 1:21 pm
Posts: 11949
Why is 6 afraid of 7?

Because 7 8 9 ....


Why did the mathematical tree fall over?

Because it had no real roots ...


Top
 Profile  
 
PostPosted: Tue Dec 13, 2011 8:05 pm 
Offline

Joined: Mon Jun 18, 2007 2:32 pm
Posts: 6966
Location: East Kent
Guest55 wrote:
Why is 6 afraid of 7?

Because 7 8 9 ....


Why did the mathematical tree fall over?

Because it had no real roots ...

:lol: :lol:


Top
 Profile  
 
PostPosted: Tue Dec 13, 2011 8:16 pm 
Offline

Joined: Mon Feb 12, 2007 1:21 pm
Posts: 11949
Why did the chicken cross the mobius strip?

To get to the other ... oh


Did you hear about the maths teacher they arrested yesterday?

No

He was carrying a protractor... so they arrested him for possession of an instrument of maths construction.


Last edited by Guest55 on Tue Dec 13, 2011 9:12 pm, edited 1 time in total.

Top
 Profile  
 
PostPosted: Tue Dec 13, 2011 9:07 pm 
Offline

Joined: Thu Dec 18, 2008 10:12 am
Posts: 3758
Location: Berkshire
yoyo123 wrote:
actually I think it's fairly good and makes you examine the evidence..quite mathematical


I think the answer was that the other coin was 10p , pointless, although there was some stuff about 2 and a half bob and a sixpence but that's only any use if you can do old money (I'm old and I can't ) - hence I prefer the 7 8 9 joke and similar ones


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 10 posts ] 

All times are UTC


Who is online

Users browsing this forum: No registered users and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
CALL 020 8204 5060
   
Privacy Policy | Refund Policy | Disclaimer | Copyright © 2004 – 2016