A bag contains 7 blue marbles and 14 mar...

A bag contains 7 blue marbles and 14 marbles that are not blue. If one marble is drawn at random from the bag, what is the probability that the marble is blue?

A

`1/3`

B

`1/2`

C

`2/3`

D

`3/7`

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The correct Answer is:

A

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