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# WebtrendsSEM Analyst for Ad Director Product/Service Interview Question

I interviewed in San Bruno, CA and was asked:
"1. how may golfballs fit in 747 2. why manhole covers round"

Part of a SEM Analyst for Ad Director Product/Service Interview Review - one of 10 Webtrends Interview Reviews

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1. just try to reason out how you'd go about calculating that.
2. check wikipedia for list of good reasons. I managed to come up with a couple on the list
- Interview Candidate on Feb 3, 2010 Flag Response
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Most likely the answer to the 747 question. If it were me, I would have said that though there are countless ways to quantify the actual figure, if one were truly interested you could fill the cabin with liquid, and drain the liquid into a container. Then measure the volume of liquid displaced.

Then, you'd need to know the volume of the golf ball, which you could do either with volume equations or by displacement again. Then, find the volume of the square with all sides equal to the diameter of the ball. Divide the volume of the ball by the volume of the square, and then multiply the quotient by the volume of water drained from the 747.

Finally, divide the volume of the 747 by the volume of the golf ball, and you've got your number. The reason for the square volume being factored if because golf balls would create negative space not reflected in the fluid.

Anyway, that's what I would say.
- Adam on Aug 13, 2010 Flag Response