Mattersight Interview Question: How much would you charge to ... | Glassdoor

Interview Question

Associate Consultant Interview(Student Candidate) Chicago, IL

How much would you charge to wash the windows in downtown?


Interview Answer

2 Answers


$25 per window

Anonymous on Apr 9, 2010

Say maybe the average building downtown has 100 windows. Suppose further that there are 200 buildings downtown. Then you have about 20,000 windows to wash.

Perhaps it takes 2 minutes to wash each window. Then you will need 20,000/2 = 10,000 minutes to wash all the windows downtown. This translates to roughly 170 hours, which working a 40 hour week will take you just over 4 weeks (4.25 weeks).

There's 52 weeks in a year, so you have worked 4/52 = 1/13 of the year. Now we need to make our numbers good to work with. Say you want 39,000 per year salary. Then you would charge 39,000/13 = 3,000 to wash all the windows in downtown.

I'm pretty sure this is how they would like you to answer these questions.

Anonymous on Jan 21, 2013

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