Math question....

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Well back in the day this would have been an easy question to answer.

If my Aunt had Balls, would she be my uncle?
 
I hate these types of brain teasers. It's creating a problem that isn't really there. The $2 change should be deducted from the $27 as they are paying $25. Not added to the fictional $27. If they each paid $9 they would each be overpaying by $0.67.

To simplify it imagine the eldest son got the $2 because he was the biggest and strongest, now he's only paid $7, and the 2 younger brothers paid $9 each so now we're right at $25.

Not quite,

Originally they paid 30, 10 each. When they got the 5 back it reduced each of their payment to 8.333. Each of them taking one dollar back from the 5, accounts for 9.33 each and the final two dollars is the difference between (3*9.333) or 28, and 30. That's where the two dollars is.
 
But they didn't ask where the two dollars was, they asked where the one dollar was.

This is not a real math question, or really a logic question at all.

It's a "spot the misdirection/lie question".
 
But they didn't ask where the two dollars was, they asked where the one dollar was.

This is not a real math question, or really a logic question at all.

It's a "spot the misdirection/lie question".
There is no messing dollar. It's an accounting problem.
 

yes, 3

Possible combinations of 3

1 black, 2 blue
1 blue, 2 black
3 blue
3 black

It's interesting how complex people try to make that.
I had one guy doing statistics and probability percentage.
...and several that said "all 12".
I'd just grab 2 socks and wear pants with boots... no socks to be seen
 
Not quite,

Originally they paid 30, 10 each. When they got the 5 back it reduced each of their payment to 8.333. Each of them taking one dollar back from the 5, accounts for 9.33 each and the final two dollars is the difference between (3*9.333) or 28, and 30. That's where the two dollars is.
I understand the maths, but the question being asked is wrong. It says they paid 3 x $9 = $27. What, for a $25 sweater? Then tries to add on the $2 "change" to get to $29.

In the real world, not with any decimals, there were 3 x $10 bills at the start. Then there was $5 in change. $1 for each brother = $3. The other $2 remains. It needs to be shared out between the brothers, therefore it needs to be deducted from the $27 they "paid", not added.
 
I understand the maths, but the question being asked is wrong. It says they paid 3 x $9 = $27. What, for a $25 sweater? Then tries to add on the $2 "change" to get to $29.

In the real world, not with any decimals, there were 3 x $10 bills at the start. Then there was $5 in change. $1 for each brother = $3. The other $2 remains. It needs to be shared out between the brothers, therefore it needs to be deducted from the $27 they "paid", not added.
Sorry but the real world has decimals. We call them cents...wtf. lol
 
The ONE question that I was asked by the service manager of the Harley shop when I asked if they were hiring....

If you had a 1/4-20 bolt tightened into aluminum, how tight would you tighten it?

That question is now one of three I ask engineers when I interview them. There's really only one right answer, and I guessed it when he asked. That job led me to my current profession and that was literally one of the best answers I've ever given. I've mentioned it here before, if anyone knows....
 
Sorry but the real world has decimals. We call them cents...wtf. lol
$8.333...
I'm not arguing with any of your maths. It's correct. I'm answering the brain teaser's incorrect question in a way that (hopefully) makes sense to the average guy in the street.
 
$8.333...
I'm not arguing with any of your maths. It's correct. I'm answering the brain teaser's incorrect question in a way that (hopefully) makes sense to the average guy in the street.
You're saying the average guy in the streets doesn't use pennies? it's a question designed to direct the subject in the wrong direction. If you don't see that it's clear you wouldn't pass the interview.
 
Wouldn't the trick be knowing how a tree grows i.e. does it grow overall or only at the top? Personally I don't know, but if I was to guess, the barbed wire wouldn't change height at all.
exactly correct!!! trees grow in height at the top of the tree. Not up out of the ground, so the barbed wire stay where it was put.
 
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