Different 66994

There are 180 balls in three different colors in the bag. What is the smallest number of marbles to be selected so that there are at least 3 of the same color among them if the marble of the same color is the same in all three colors?

Correct answer:

x =  7

Step-by-step explanation:

n=180 n1=n/3=180/3=60  x=2+2+2+1=7

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