Johnny Ball's Math's Joke
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Johnny Ball's Math's Joke
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.
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.
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Re: Johnny Ball's Math's Joke
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!
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Re: Johnny Ball's Math's Joke
I also heard it and found it absolutely awful, nothing to do with any kind of reasoning or mathematical ability whatsoever.
Just a joke....
Just a joke....
Re: Johnny Ball's Math's Joke
Actually a similar question to this was on a paper of questions my DD was given at school in critical thinking!
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Re: Johnny Ball's Math's Joke
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.
Re: Johnny Ball's Math's Joke
actually I think it's fairly good and makes you examine the evidence..quite mathematical
Re: Johnny Ball's Math's Joke
Why is 6 afraid of 7?
Because 7 8 9 ....
Why did the mathematical tree fall over?
Because it had no real roots ...
Because 7 8 9 ....
Why did the mathematical tree fall over?
Because it had no real roots ...
Re: Johnny Ball's Math's Joke
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 ...
Re: Johnny Ball's Math's Joke
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.
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 10:12 pm, edited 1 time in total.
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- Posts: 3767
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Re: Johnny Ball's Math's Joke
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 onesyoyo123 wrote:actually I think it's fairly good and makes you examine the evidence..quite mathematical