kdeschene1
Answered

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A bag contains 8 gray glass marbles, 2 gray metal marbles, 4 black glass marbles, and 6 black metal marbles. If one marble is drawn at random, what is the probability that it is glass, given that it is one of the black marbles?
A. 1/5
B. 1/3
C. 2/5
D. 1/2

Sagot :

Answer:

1/5

Step-by-step explanation:

Total marbles = 20

Black marbles = 10

(10/20) x (4/10)

= (1/2) x (2/5)

= 2/10

= 1/5

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