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nekit [7.7K]
2 years ago
15

A box contains 3 yellow, 2 red, 4 green and 3 black marbles. Two marbles are taken one after the other at random from the box. W

hat is the probability that both marbles are red?
a) 1/50
b) 1/60
c) 1/66
d) 2/57
e) 1/6
Advanced Placement (AP)
2 answers:
Temka [501]2 years ago
7 0
2/12 times 1/11 equals 1/66
jeka57 [31]2 years ago
5 0
It should be C. There are 12 marbles total, and 2 of them are red, so 2/12 or 1/6.
After the first one is drawn there are 11 marbles left 1 of which is red, so 1/11
1/11•1/6=1/66
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