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Two contestants play a game as follows: ...

Two contestants play a game as follows: each is asked to select a digit from 1 to 9. If the two digits match they both win a prize. The probability that they will win a prize in a single trial is

A

`1/81`

B

`7/81`

C

`1/9`

D

`3/11`

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The correct Answer is:
C
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