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An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

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An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

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Total number of red balls = 10

Total number of red white balls = 8

Total number of balls = 10 + 8 = 18

Probability of getting a white ball is = Total number of white balls/Total numbers of balls

= 8/18

= 4/9

∴ Probability of a white ball is 4/9

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