Latest self Aptitude Question SOLUTION: there are 16 balls in a bag 8 red 4 green 4 blue.find least no. of balls to be taken out such that we have atleast one ball of each color

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(#M40030632) SELF question probability Keep an EYE

there are 16 balls in a bag 8 red 4 green 4 blue.find least no. of balls to be taken out such that we have atleast one ball of each color

Himanshi Singh (10 years ago)

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Parth  (10 years ago)

13
Since we always had to consider all the possibilities in this type of question. So assume we had drawn 8 balls (possibility that all are red) so we need to draw more balls.
Again we draw 4 more balls say all are green this time. Total till now = 8+4=12
Now we only have to draw one ball so that there is atleast one ball of same color.
Thus least no. of balls=8+4+1=13

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jagadeesh kumar.B  (10 years ago)

8c1+4c1+4c1=24 i think so but not exactly...

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praveena  (10 years ago)

(8c1/16c3)(4c1/16c3)(4c1/16c3)

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vimal  (10 years ago)

please somebody explaun it

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