Morgan Stanley

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Interview Question

Trader Interview New York, NY

What is the square root of .01?

Tags:
brain teaser
Answer

Interview Answer

8 Answers

1

.3167 - Just memorize it, it's very common.

Interview Candidate on May 15, 2009
6

I think you mean the sqrt of 0.1, not 0.01. The sqrt of 0.01 is 0.1.

Scott on May 19, 2009
0

Not to be a fuddy-duddy, but .3162 would be closer. (If you're going to take it to 4 decimals then you should use the closest 4th decimal.)

rhmayer on Jun 20, 2009
4

Answer: 0.1 assuming my 2 SCI calculators and my manual calculations are correct

Comments:
1- 0.3167 is the square-root of 0.1 not 0.01
2- Don't tell you interviewer he is wrong. You want the job don't you?
3- You actually need to use a 5/4 round-off using the 5th place for a more accurate 4th ( I think that's what you meant to say)

Alanjai on Jul 25, 2009
2

0.01 is the same as 1/100 and if you take the square root of the top and bottom, you get 1/10 or 0.1.

Grace on Jan 18, 2010
6

The square root of 0.01 is neither 0.1 nor 0.3162. The square root of 0.01 is +0.1 AND -0.1 (Negative 0.1). The negative root is frequently overlooked.

Robert on Jan 18, 2010
0

Isn't it prime already? So its sq rt is 0.01. I'm so confused!

Robin Richardson on Jan 30, 2010
0

actually, square roots are always positive. the definition of a square root is that it's an absolute value.

i.e. sqrt of (-1)*(-1) = |-1| = 1

My real response to this topic though is that I dread such silliness in interviews. In my current position I was asked a stupid question in a 5-on-1 interview and basically said what I thought about the question but still got the job - so maybe that was the correct answer. Hope I don't ever find myself desperately needing a job and having to endure this silliness again.

bob on Feb 3, 2010

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