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प्रश्न
A bag contains 8 red, 2 black and 5 white balls. One ball is drawn at random. What is the probability that the ball drawn is not black?
विकल्प
`18/15`
`2/15`
`13/15`
`1/3`
उत्तर
`13/15`
Explanation:
Total possible outcomes = Total number of balls
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