Interview Question

Graduate Analyst Interview

-London, England

NatWest Group

Let’s play a game of Russian roulette. You are tied to your chair and can’t get up. Here’s a gun. Here’s the cylinder of the gun, six chambers, all empty. Now watch me as I put two bullets in the gun, adjacent to each other. I close the cylinder and spin it. I put a gun to your head and pull the trigger. Click. Lucky you! Now I’m going to pull the trigger one more time. Which would you prefer, that I spin the cylinder first, or that I just pull the trigger?

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Interview Answers

2 Answers

14

Better to spin again since probability of hitting would decrease to 2/6 from 2/5.

Shuv on

2

Its better not to spin.

Anonymous on

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