1. marbles

a bag contains 3 red, 4 white, and 5 blue marbles. Jason begins removing marbles from the bag at random, one at a time. What is the least number of marbles he must remove to be sure that he has at least 1 marble of each color?

I thank you all in advance,
thank you

2. 10

Worse case scenario is keeps taking the most common colours and none of the rarest leading to selecting 4 white and 5 blue.

Plus 1 red to get one of each colour

3. Originally Posted by Judi
a bag contains 3 red, 4 white, and 5 blue marbles. Jason begins removing marbles from the bag at random, one at a time. What is the least number of marbles he must remove to be sure that he has at least 1 marble of each color?

I thank you all in advance,
thank you
3, if he draws one color after another, he only needs to draw 3 marbles

4. Originally Posted by Quick
3, if he draws one color after another, he only needs to draw 3 marbles
Least number to be sure of at least one of each colour. If 3 are taken then
they could all be red, or whatever without there being one of each colour.

RonL

5. tsk, tsk

Originally Posted by CaptainBlack
Least number to be sure of at least one of each colour. If 3 are taken then
they could all be red, or whatever without there being one of each colour.

RonL
I didn't realise it said "sure" to be taken

6. thanks,

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A bag contains 3 red 4 white and 5 blue marbles. Mr. karim begins removing marbles from the bag at randim

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