Macquarie Group Interview Question: square root 100000... | Glassdoor

Interview Question

Investment Banking Analyst Interview(Student Candidate) New York, NY

square root 100000

Answer

Interview Answer

3 Answers

1

Use your calculator..

Interview Candidate on Oct 15, 2011
5

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
0

For 100,000, just think what is the square root of 10 and then times 100, the range is between 3-3.5, so the final answer should be 300 to 350.

Ivan on Nov 7, 2016

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