Math, asked by aitsyourboy97, 11 months ago

Hey mate here is your answer

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Answered by Gauravishere

2

HEY MATE HERE IS YOUR ANSWER

Step-by-step explanation:

9black balls

12blackballs

TOTAL BALLS =9+12 =21

PROBABILITY OF BLACK BALLS =9/21=3/7

=3/21

HOPE IT HELPS YOU

@Gauravishere

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