# Thread: Top 20 Most Difficult Companies for Interviews

1. ## Top 20 Most Difficult Companies for Interviews

http://jobs.aol.com/articles/2011/06...or-interviews/

And these were sample Interview Questions from each of the 20:

[ QUOTE ]
Mom and pop music shop wants to grow with stiff competition. How should they go about it? Calculate customer lifetime value.

You have 2 decks of cards (each deck contains both red and black cards). One deck has twice the number of cards in the other deck with the same color ration (so one deck has 52 cards and the other has 104, both half red and half black). I offer you to play a game. First you get to chose which deck of cards you want to play with. Second, you draw 2 cards at random from your deck of choice. If both are red, then I will give you a ferarri. Which deck of cards would you chose?"

How many barbers do you need in a city of 1 million people?

Help me estimate how many car dealerships there are in the United States?

How many golf balls can fit in a 747?

How would you test an elevator to see if it is safe to ride?

You want to take the third graders on a field trip to the zoo, but there is no extra funding to do so. You must ask the principal to reconsider and allow your students to go on the field trip. Explain how you would persuade the principal.

Can you tell me how many airplanes fly out of O'hare in a given day?

If you were an animal, what animal would you be?

If you had to change a tire, how would you do it?

It is your first day, you have no clue about the work and you have been asked to solve a tough problem. How will you go about it ?

How do you look for SQL injections?

Describe a very hectic week and what you did to prioritize.

Estimate the percentage of the US which is covered by man-made structures.

How would you explain your job to an aunt or uncle who is not familiar with that industry?

Would you say you learn a lot about a little, or a little about a lot?

Come up with a formula to calculate the angle between the hour hand and the minute hand in a clock.

It's known that an egg broke when dropped from the 100th floor. Given two eggs, how do you figure out the highest floor an egg can be dropped from without breaking?

How did you prepare for our interview?

[/ QUOTE ]

[img]/images/graemlins/smile.gif[/img] How do you look for SQL injections?

[img]/images/graemlins/frown.gif[/img] If you were an animal, what animal would you be?

2. ## Re: Top 20 Most Difficult Companies for Interviews

&gt; If you were an animal, what animal would you be?

Err *IF* I am an animal? [not sure I'd say that out loud at interview!] But to choose another, a turtle.

&gt; You have 2 decks of cards

The bigger deck will have more reds remaining after taking the first card, so I'd choose that one.

&gt; How many barbers

300. Take 1 million, half it for men only. Divide by 50 (weeks in a year) for approx. haircuts per week. That's 10,000 haircuts needed a week. Times by 6 (hair needs cutting 6 times a year), we need to do 60,000 haircuts a week. At one cut in 15 minutes, working 7.5 hours a day one barber does 30 a day. Working 5 days a week one barber does 150 week. 60,000/150 = 400. I'm going to take off 1/4 for babies, boldys, hippies and self-cutters, so 300 barbers needed.

I guess the challenge is whether I could do that at interview!

3. ## Re: Top 20 Most Difficult Companies for Interviews

I disagree on the card answer SimonFromLeeds -- the ratio red/black in the two decks is the same regardless. For your answer, if the first card isn't red the number of red cards is the same as when you started.

Joe, when reading the list my first thought was "what do these have to do with any job". But I guess this is a rehash of the articles about Microsoft asking puzzle questions. They might get insight on problem solving techniques or how I react to questions that go 'off script'. There are plenty of job related questions that can do that IMO.

4. ## Re: Top 20 Most Difficult Companies for Interviews

[ QUOTE ]
&gt; If you were an animal, what animal would you be?

Err *IF* I am an animal? [not sure I'd say that out loud at interview!]

[/ QUOTE ]
An oldie, but goodie:

"On the Internet, nobody know's you're a dog."

[img]/images/graemlins/tongue.gif[/img]

5. ## Re: Top 20 Most Difficult Companies for Interviews

[ QUOTE ]
Joe, when reading the list my first thought was "what do these have to do with any job". But I guess this is a rehash of the articles about Microsoft asking puzzle questions.

[/ QUOTE ]
Yup.

The article didn't mention which job title was being filled for each of the sample interview questions.

Still, some of them just make me sigh. If, instead of "Why are manhole covers round?" questions, Microsoft historically asked "If you could be a tree, what kind of tree would you be?" questions, would all the sheep follow suit?

6. ## Re: Top 20 Most Difficult Companies for Interviews

[ QUOTE ]
I disagree on the card answer SimonFromLeeds -- the ratio red/black in the two decks is the same regardless. For your answer, if the first card isn't red the number of red cards is the same as when you started.

[/ QUOTE ]

You're right, but I hadn't fully explained winning is either:

26/52 + 25/51 = 51/103 = 0.495

or

52/104 + 51/103 = 103/207 = 0.498

So the biggest deck is marginally better

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