SOLUTION: Jimmy has 7 pieces of bubble gum. 4 pieces are blue bubble gum and 2 pieces are green bubble gum. They were all put into a bag. Jimmy stuck his hand in and ate 1 piece of the blu

Algebra ->  Percentage-and-ratio-word-problems -> SOLUTION: Jimmy has 7 pieces of bubble gum. 4 pieces are blue bubble gum and 2 pieces are green bubble gum. They were all put into a bag. Jimmy stuck his hand in and ate 1 piece of the blu      Log On


   

Question 178043: Jimmy has 7 pieces of bubble gum. 4 pieces are blue bubble gum and 2 pieces are green bubble gum. They were all put into a bag. Jimmy stuck his hand in and ate 1 piece of the blue bubble gum. What are the chances that Jimmy will pick up a green piece on his next try? (Fractional chance?)
Answer by gonzo(654) About Me  (Show Source):
You can put this solution on YOUR website!
there are a total of 7 pieces.
there are 4 blue
there are 2 green.
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without drawing anything, the probability of getting a green piece is 2/7 because there are 2 greens out of a total of 7.
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he sticks his hand in and gets a blue piece and eats it.
there are now 6 pieces of bubble gum in the bag.
the probability of getting a green piece is now 2/6 because there are still 2 green pieces in the bag but the total in the bag is now 6 rather than 7.
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