A truck contain 150 red and 200 black balls. find the probability that a ball drawn at random is a black balls.
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4
200/350
simplify it
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simplify it
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Total number of balls= 150+200= 350
Hence, probability that a ball drawn at random is black ball = 200/350 = 20/35= 4/7
Hence, probability that a ball drawn at random is black ball = 200/350 = 20/35= 4/7
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