A bag contains 6 blue coins and 4 red coins. A coin is removed at random and replaced by three of the other color.
Part 1
What is the probability that the removed coin is blue? Enter your answer as a simplified fraction.
The probability that the removed coin is blue is 3/5
Part 2 out of 3
If the first coin removed is blue, what is the probability of drawing a red coin after three red coins are put in the bag to replace the blue one?
The probability of drawing a red coin after three red coins are put in the bag to replace the blue one that has been removed is ______
