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How brainy are you HOL'ers

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Hoof Hearted 14 Mar 16 11.05am

Originally posted by Stuk

No it doesn't. I gave it the same thoughts, but came to the correct conclusion. Namely that if they're the same age there isn't a "youngest".

That just shows that qualifications don't mean much.

Hate to point out the obvious, but twins can be and are actually older/younger - I know one set of twins born on different days... one just before midnight and one after. The oldest of them constantly bangs on about it. Unless they are born simultaneous by Caesarian section one will always be the younger.

No... qualifications don't mean much... except that in my case I was able to retire at 50 financially secure and 11 years on still enjoying the lifestyle that those qualifications didn't do much for!

Edited by Hoof Hearted (14 Mar 2016 11.05am)

 

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Catfish Flag Burgess Hill 14 Mar 16 11.08am

I began looking at this but my brain started to bleed.

 


Yes, I am an agent of Satan but my duties are largely ceremonial

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View npn's Profile npn Flag Crowborough 14 Mar 16 11.42am Send a Private Message to npn Add npn as a friend

Originally posted by Stuk

No it doesn't. I gave it the same thoughts, but came to the correct conclusion. Namely that if they're the same age there isn't a "youngest".

That just shows that qualifications don't mean much.

Depends on whether you believe that, if you asked a parent with two kids born in January and October the same year, and who are currently the same age (i.e. you ask in December) how old their youngest was, they would say "ten" (or whatever) or "I don't have a youngest because two are the same age". Personally, I'd expect to get the first of those responses. Given the nature of the phrasing of the question (i.e. "not enough information to reach an answer" then I'd be inclined to say "still not enough information to reach an answer". I'm with Hoof on this one - badly worded and/or designed question.

 

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View Stuk's Profile Stuk Flag Top half 14 Mar 16 12.30pm Send a Private Message to Stuk Add Stuk as a friend

I've repeatedly put "youngest" as I know there are permutations where the children could be twins or the same age.

You would both lose marks for saying there's information missing however. What you mean is there's not enough information to prove that, with what ifs and buts, you could come up with an alternate answer.

The kid in the question can see the room number so it's not missing, you just need to work out what it is.

 


Optimistic as ever

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View npn's Profile npn Flag Crowborough 14 Mar 16 12.41pm Send a Private Message to npn Add npn as a friend

Originally posted by Stuk

I've repeatedly put "youngest" as I know there are permutations where the children could be twins or the same age.

You would both lose marks for saying there's information missing however. What you mean is there's not enough information to prove that, with what ifs and buts, you could come up with an alternate answer.

The kid in the question can see the room number so it's not missing, you just need to work out what it is.

I totally get what you're saying, but the fact is that the statement "the youngest is called Amanda" is clearly in there to state "the youngest two children do not share the same age", and it just doesn't do that

 

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View the_mcanuff_stuff's Profile the_mcanuff_stuff Flag Caterham 14 Mar 16 12.46pm Send a Private Message to the_mcanuff_stuff Add the_mcanuff_stuff as a friend

there are 8 possible solutions to this:

1,1,36
1,2,18
1,3,12
1,4,9
1,6,6
2,2,9
2,3,6
3,3,4

If you take "youngest" to mean "youngest by 1 year or more" the solutions are:

1,2,18
1,3,12
1,4,9
1,6,6
2,3,6

note that 1,6,6 remains, as there is nothing to say there is a definite "oldest".

But even if you take the question to read that every child has a "unique" integer age (ignoring months etc.) you have the possible solutions:

1,2,18
1,3,12
1,4,9
2,3,6

They all sum to different values, but then we don't know what the sum of their ages is. Or have I missed something?

 

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View Stuk's Profile Stuk Flag Top half 14 Mar 16 12.51pm Send a Private Message to Stuk Add Stuk as a friend

Originally posted by the_mcanuff_stuff

there are 8 possible solutions to this:

1,1,36
1,2,18
1,3,12
1,4,9
1,6,6
2,2,9
2,3,6
3,3,4

If you take "youngest" to mean "youngest by 1 year or more" the solutions are:

1,2,18
1,3,12
1,4,9
1,6,6
2,3,6

note that 1,6,6 remains, as there is nothing to say there is a definite "oldest".

But even if you take the question to read that every child has a "unique" integer age (ignoring months etc.) you have the possible solutions:

1,2,18
1,3,12
1,4,9
2,3,6

They all sum to different values, but then we don't know what the sum of their ages is. Or have I missed something?

Of your 8 options only two have the same sum, so it has to be one of those two.

 


Optimistic as ever

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View the_mcanuff_stuff's Profile the_mcanuff_stuff Flag Caterham 14 Mar 16 12.54pm Send a Private Message to the_mcanuff_stuff Add the_mcanuff_stuff as a friend

Re: the pig problem, can any sty be empty?

 

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View the_mcanuff_stuff's Profile the_mcanuff_stuff Flag Caterham 14 Mar 16 12.56pm Send a Private Message to the_mcanuff_stuff Add the_mcanuff_stuff as a friend

Originally posted by Stuk

Of your 8 options only two have the same sum, so it has to be one of those two.

Why? I don't see how that is implied in the question? Sorry if I'm being thick. We just know it is number "x".

 

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View the_mcanuff_stuff's Profile the_mcanuff_stuff Flag Caterham 14 Mar 16 12.58pm Send a Private Message to the_mcanuff_stuff Add the_mcanuff_stuff as a friend

Originally posted by the_mcanuff_stuff

Why? I don't see how that is implied in the question? Sorry if I'm being thick. We just know it is number "x".

Oh, sorry I do, because neither of the following answers provide the sum isn't enough to uniquely identify the answer.

 

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View Stuk's Profile Stuk Flag Top half 14 Mar 16 12.59pm Send a Private Message to Stuk Add Stuk as a friend

Originally posted by the_mcanuff_stuff

Why? I don't see how that is implied in the question? Sorry if I'm being thick. We just know it is number "x".

As it's the only way to work out everything.

Otherwise it's a question with 8 answers.

 


Optimistic as ever

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View mr. apollo's Profile mr. apollo Flag Somewhere in Switzerland 14 Mar 16 1.01pm Send a Private Message to mr. apollo Add mr. apollo as a friend

Originally posted by the_mcanuff_stuff

Re: the pig problem, can any sty be empty?

Indeed it can...


I'm glad someone is having a look at that one rather than nit picking the first question.

 



Glad

All

Over

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