A whisky question

Friend of mine went to an interview with an investment bank. As is usual he was asked some brain teaser questions.

Guy goes to a whisky tasting, he notices people never finish the whole glass they always leave dregs in the bottom. For every 10 dreg glasses he can get 1 full glass from the dregs. If there's 100 glasses with dregs how many full glasses can he get?

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ninalanyon · 61-69, T

That's the first trick question I can recall seeing that is actually relevant to the job being applied for.

Oops forgot to answer. It's eleven.

ninalanyon · 61-69, T

@ninalanyon It occurs to me that a further comment is called for. I see trick interview questions being mentioned online quite often. But in my career I never encountered one in real life, nor can I recall any of my friends, relatives, or acquaintances ever saying that they had encountered one.

So are they simply mythical or do they actually happen but not where I have looked for jobs (UK, Norway)?

hippyjoe1955 · 70-79, M

None. The glasses are empty and have no dregs in them.

JonUK41 · 36-40, M

@hippyjoe1955 Just edited the question to make clear - how many full glasses can he get from 100 glasses with dregs?

My fault for not phrasing it properly

Achelois · F

None because he drank them!

meJess · F

Bankers working out how to take from everyone else.

GeniUs · 56-60, M

The obvious answer is 10 but who the f would drink that disease ridden concoction?

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GeniUs · 56-60, M

@JonUK41 I would argue there are too many other variables and a poor example of compound v basic interest to be a good question.
edit: Also risk analysis has to come into the equation.

JonUK41 · 36-40, M

@GeniUs Thinking 9 would be an acceptable answer. After drinking 9 he fell down drunk and/or threw up and couldn't drink any more.

The whole point of the question seems to be the answer is not 10.

SomeMichGuy · M

@JonUK41 The guy notices OTHER ppl leaving dregs of 1/10th; they are into the tasting, not the drinking.

Anyone that into the whiskey that they are pooling the dregs isn't leaving 10% of the glass behind, he's drinking it all.

The question, explained as you did, assumes that they average or typical behavior applies to ALL; anyone who 8s gathering dregs isn't typical...

oldguy73 · 70-79, M

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