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A bog contains 5 white and 4 black balls...

A bog contains 5 white and 4 black balls, and another bag contains 4 white and 6 black balls. One ball is taken at random from the first bag and put in the second. If a ball is taken at random now from the second bag, probability that it is black is

A

`48/99`

B

`58/99`

C

`68/99`

D

`32/99`

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The correct Answer is:
B
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