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Discussion on: 112 Non-Tech Interview Questions to reflect on

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peter profile image
Peter Kim Frank

This is a great list of "behavioral" questions. These two stuck out as being more in the "lateral thinking" or "talk me through it" style of questions:

Q5: A hammer and a nail cost $1.10 together, and the hammer costs one dollar more than the nail. How much does the nail cost?

Q106: What would happen if you put a mirror in a scanner?

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jackharner profile image
Jack Harner πŸš€

Hopefully the look of surprise on my face wouldn't count against me if I got asked the mirror in a scanner question.

The answer is all white, right? The light from the scanner would just reflect right back down into the scanner. Or would I get bonus points for being like "It depends on which side of the mirror did you put down?"

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jdsteinhauser profile image
Jason Steinhauser

To me, Q5 is just one that is not as simplistic as it looks on its surface. Your gut reaction is to say "10 cents," but that's before you check your answer.

It reminds of yet another classic interview question:

Q: You have two posts that are 50 meters high, and an 80 meter cable connecting the two of them at the top. The cable, at its lowest, is 10 meters off the ground. How far apart are the two posts?

A: They're right next to each other. The cable would hang down 40 meters from the top, and go directly back up the additional 40 meters to the other pole, resulting in the lowest point of the cable being 10 feet off the ground.