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How brainy are you HOL'ers

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View mr. apollo's Profile mr. apollo Flag Somewhere in Switzerland 11 Mar 16 3.27pm Send a Private Message to mr. apollo Add mr. apollo as a friend

Question from a Year 9 (!) maths paper...
A student in a maths class was trying to get some information from her teacher.
Sally: How many children have you got, Mrs Smith?
Mrs Smith: Three
Sally: How old are they?
Mrs Smith: If you multiply their ages together it comes to 36
Sally: That doesn’t give us enough information
Mrs Smith: If you add the ages, you get the number on the door over there
Sally: That still doesn’t give us enough information, Mrs Smith
Mrs Smith: The youngest is called Amanda
Sally: Thank you, now we know how old they are
How old are her children?


AND


Problem. — Place twenty-four pigs in four sties so that, as you go round and round you may always find the number in each sty nearer to ten than the number in the last.

Edited by mr. apollo (11 Mar 2016 3.55pm)

 



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View 20 Spaces Isnt Enoug's Profile 20 Spaces Isnt Enoug Flag Bolton 11 Mar 16 3.30pm Send a Private Message to 20 Spaces Isnt Enoug Add 20 Spaces Isnt Enoug as a friend


6 3 and 2

cos if there is a youngest, cant be 36 and 1 year old twins?

 

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View mr. apollo's Profile mr. apollo Flag Somewhere in Switzerland 11 Mar 16 3.31pm Send a Private Message to mr. apollo Add mr. apollo as a friend

Nope

 



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View 20 Spaces Isnt Enoug's Profile 20 Spaces Isnt Enoug Flag Bolton 11 Mar 16 3.31pm Send a Private Message to 20 Spaces Isnt Enoug Add 20 Spaces Isnt Enoug as a friend

oops .. sorry..could be 18 2 1

 

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View mr. apollo's Profile mr. apollo Flag Somewhere in Switzerland 11 Mar 16 3.32pm Send a Private Message to mr. apollo Add mr. apollo as a friend

Nope,

 



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View Stuk's Profile Stuk Flag Top half 11 Mar 16 3.44pm Send a Private Message to Stuk Add Stuk as a friend

6 6 & 1

 


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View mr. apollo's Profile mr. apollo Flag Somewhere in Switzerland 11 Mar 16 3.45pm Send a Private Message to mr. apollo Add mr. apollo as a friend

Why?

 



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View Stuk's Profile Stuk Flag Top half 11 Mar 16 4.00pm Send a Private Message to Stuk Add Stuk as a friend

Originally posted by mr. apollo

Why?

It's the only one that has another option for the door number that fits the rest of the criteria.

9 2 & 2 doesn't leave a "youngest"

 


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View mr. apollo's Profile mr. apollo Flag Somewhere in Switzerland 11 Mar 16 4.02pm Send a Private Message to mr. apollo Add mr. apollo as a friend

And the first prize of general brainbox goes to Stuk, double points if you get the second question (no cheating now)

 



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View chris123's Profile chris123 Flag hove actually 11 Mar 16 4.47pm Send a Private Message to chris123 Add chris123 as a friend

Originally posted by Stuk

6 6 & 1

Mensa!

 

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Hoof Hearted 11 Mar 16 4.51pm

Why can't it be 3, 3 and 4?

The youngest child could still be Amanda - born last of the twins?

 

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View Stuk's Profile Stuk Flag Top half 11 Mar 16 5.00pm Send a Private Message to Stuk Add Stuk as a friend

Originally posted by Hoof Hearted

Why can't it be 3, 3 and 4?

The youngest child could still be Amanda - born last of the twins?

Because there's no other triple that multiplies to equal 36 and adds to equal 10.

 


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