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A bag contains 10 red marbles, 8 green marbles and 2 blue marbles. What is the probability of getting a red marble and not replacing it and then get ablue marble? (Reduce Fraction and write with a 1)

Respuesta :

SOLUTION:

Step 1:

Number of marbles;

Red - 10

Green - 8

Blue - 2

Total = 10 + 8 + 2 = 20

Step 2:

At the first pick;

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