SOLUTION: A jar contains a red marble, a blue marble, and six green marbles. Tom draws one marble from the jar, and then Mary draws a marble from those remaining. If the probability that Tom

Question 300242: A jar contains a red marble, a blue marble, and six green marbles. Tom draws one marble from the jar, and then Mary draws a marble from those remaining. If the probability that Tom draws the red marble and Mary draws the blue marble is 1/x,
what is the value of x?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
1 R, 1 B, 6 G, 8 total
Probability that Tom picks a red=1/8.
0 R, 1 B, 6 G, 7 total
Probability that Mary picks a blue=1/7.
Both together, multiply the probabilities.

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