Technical Project Interview Questions

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You have three friends and one flashlight and you appear at an old bridge. You only have one flashlight. Only two people can cross the bridge at once and they need to be holding the flashlight.. One friend can cross in 12 minutes, one can cross in 8 minutes, one can cross in 2 minutes, and you can cross in 1 minute. How fast can you all get across the bridge?
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Technical Consultant

Interviewed at Paytronix

3.2
Jul 27, 2016

You have three friends and one flashlight and you appear at an old bridge. You only have one flashlight. Only two people can cross the bridge at once and they need to be holding the flashlight.. One friend can cross in 12 minutes, one can cross in 8 minutes, one can cross in 2 minutes, and you can cross in 1 minute. How fast can you all get across the bridge?

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