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How many balls you must take out to make sure you have one ball of each color at least.

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In the drawer beside your bed, you have three orange, two pink and five purple balls. There is no electricity and the room is completely dark.
How many balls you must take out to make sure you have one ball of each color at least.

posted Apr 16, 2015 by Aastha Joshi

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2 Solutions

+2 votes
 
Best answer

It is 9,

First five takes may be all of them are 5 purple balls,
Next 3 takes may be all of them are 3 orange balls,
And I sure that the next ball is the remaining colour.

solution Apr 17, 2015 by Sreejith Pottathil
0 votes

*eight balls

solution Apr 23, 2015 by Martin Raj Kumar
Sorry.Nine is correct.



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