Interview Question

Software Developer Interview

-Dublin, Dublin


You have 50 balls, half white and half black. You have to put all the balls in two boxes and then I choose one ball from any of the boxes without seeing. If I choose a black ball I win, if I choose a white one you win. How would you distribute the balls in the boxes in such way that you have more odds to win.

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Interview Answers

2 Answers


Put a single white ball in one box and all other balls in the other. Gives you close to 75% chance...

Toby on


Correct but in this case its the black ball

Anonymous on

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