Why are manhole covers round? What if you get that in a job interview?

October 11, 2007

The question of why manhole covers are typically round, at least in the U.S., was made notorious by Microsoft, who began asking it as a job-interview question. Originally meant as a psychological assessment of how one approaches a question with more than one “right” answer, the problem exerts a strange fascination on people.

read more | digg story


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