Blue Origin Mock Interview

Practice 35 Blue Origin interview questions covering technical aerospace challenges, mission alignment, and safety culture.

Question 35 of 35

Three light switches control three corresponding bulbs in the next room. From where you are, you can’t tell which switch controls which bulb. Only entering the room once, how do you determine which switch operates which light?

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Kevin Downey

Kevin Downey has an extensive background in business management, recruiting, branding and marketing. He's volunteered his career coaching services at job fairs, lecturing on interview techniques and crafting winning resumes and cover letters.

"I would turn on two switches and leave them on for a while. Then I would turn one of them off, go into the room, and see which of the two bulbs that were off were still warm. Then I would be able to determine which one lights which bulb conclusively and label each switch accordingly to ensure no one on my teams ran into this issue again."

Kevin Downey

This question is a fun riddle Blue Origin poses for their candidates. It intends to determine your problem-solving analytical skills in real-time. Before looking up the answer, try to solve this problem on your own. If you already know the answer, admit to it, and have fun with the question. Any connection you can make with your interviewer during more relaxed questions, the higher the likelihood you'll be a more memorable candidate.

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