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Macquarie Group Investment Banking Analyst Interview Question (student candidate)

I interviewed in New York, NY and was asked:
"square root 100000"
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Answer

Part of a Investment Banking Analyst Interview Review - one of 167 Macquarie Group Interview Reviews

Answers & Comments

0
of 1
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Use your calculator..
- Interview Candidate on Oct 15, 2011
1
of 1
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Think of it like this:

100 = 10 * 10
10,000 = 100*100

When you Square 10, the product has the combined number of zeros.

For 100,000, the number has an odd number of zeros (5). Therefore, you should think of it as something between 300 and 400, since 300 squared is 90,000 and 400 squared is 160,000. I would give them a range - probably around 300-315.
- SC Trojans on Oct 23, 2011

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