Asked by vault tec
There are 30 pieces of 4 different colours but same size balls in a bag.
Asmo is asked to take out balls from the bag with closed eyes. To guarantee
the balls taken are not less than 5 same colour balls, at least how many balls should be taken out from the bag?
Asmo is asked to take out balls from the bag with closed eyes. To guarantee
the balls taken are not less than 5 same colour balls, at least how many balls should be taken out from the bag?
Answers
Answered by
Steve
Suppose 4 of each color were drawn. That makes 16 balls.
The 17th ball would have to be the 5th of one of the colors.
The 17th ball would have to be the 5th of one of the colors.
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