k9ayleeanIlla k9ayleeanIlla

07-08-2016
Mathematics

Answered

A bag has 5 red marbles, 6 blue marbles and 4 black marbles. What is the probability of picking a blue marble, replacing it, and then picking a red marble?

A8/75
B3/5
C2/15
D4/45

Verified Answer :

HomertheGenius HomertheGenius

10-08-2016

Probability of picking a blue marble : 6 / 15 = 2/5
Probability of picking a red marble: 5 / 15 = 1/3
2/5 * 1/3 = 2/15
Answer: C ) 2/15

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