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प्रश्न
A ball is drawn at random from a box containing 12 white, 16 red and 20 green balls. Determine the probability that the ball drawn is white.
योग
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उत्तर
Total number of balls in the box = 48
Total possible outcomes on drawing a ball = 48
n(S) = 48
Event of drawing a white ball = E = 12
n(E) = 12
Probability of drawing a white ball = `(n(E))/(n(S)) = 12/48 = 1/4`
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