Question

a bag contains 20 marbles: 6 green,10 brown and 4 white.if one marble is removed randomly what is the minimum number that must be removed to be certain that you have at least 2 marbles of each colour?

Answer 1

1 marble i guess as 1 random marble is already taken out if we say it's white we would be left with 3 white marbles and as to get 2 marbles of each colours we could remove another again