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In a class (2)/(3) of it are boys and (1...

In a class `(2)/(3)` of it are boys and `(1)/(3)` of it are girls. The probability for a boy to get first class is `0.28` and the probability for a girl to get a first class is `0.25`. If a person is choosen at random, the probability for the chosen person to get first class is

A

`0.47`

B

`0.53`

C

`0.27`

D

`0.71`

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The correct Answer is:
C
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