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Question

A bag contains 5 reds balls , 8 black balls and 7 white balls . One ball is chosen at random .what is the probability that the chosen ball is black

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Solution

Dear student
number of red balls=5
number of black balls=8
​​​​​​​number of white balls=7
​​​​​​​the total number of balls=5+8+7=20
probability of black ball=total number of black ballstotal number of balls =820=25
​​​​​​​regards

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