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A bag contains k blue and 4 black identical balls, where k is a constant....

A bag contains k blue and 4 black identical balls, where k is a constant. Two balls are drawn at random from the bag one after the other without replacement. If the probability of drawing 2 black balls is 2/5, find the value of k?
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Asked by Olaleye95 on 26th March, 2024
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