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In his pocket, a boy has 3 red marbles, 4 blue marbles, and 4 green marbles. How many marbles will he have to take out of his pocket to ensure that he has taken out at least one of each color?

In his pocket, a boy has 3 red marbles, 4 blue marbles, and 4 green marbles. How many marbles will he have to take out of his pocket to ensure that he has taken out at least one of each color? Correct Answer 9

Even if he takes out all of the blue and green marbles (4 + 4 = 8), he still has one color left. So, to make sure that he has taken out atleast one marble of each colour, he will have to take (4 + 4 + 1 = 9) marbles out of his pocket.

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