Calculate the pressure exerted by the water when a tank having dimensions 3m *2m *1m is half filled with it.
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A box contains 2 blue, 4 red, 5 green and 1 yellow caps. What is the probability that at least one cap is red when 2 caps are randomly picked? Possible ways of drawing 2 caps = 12c2. Probability that atleast one cap is red =probability of drawing 1 red cap with any other cap + probability of drawing 2 red caps.
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