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An urn contains one black ball and one g...

An urn contains one black ball and one green ball. A second urn contains one white and one green ball. One ball is drawn at random from each urn.
What is the probability of getting at least one green ball?

A

`1//2`

B

`1//3`

C

`2//3`

D

`3//4`

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The correct Answer is:
D
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