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प्रश्न
A bag contains 100 identical marble stones which are numbered 1 to 100. If one stone is drawn at random from the bag, find the probability that it bears a number divisible by 4 and 5.
योग
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उत्तर
Total number of possible outcomes = 100
Numbers which are divisible by 4 and 5 = 20, 40, 60, 80, 100
Number of favorable outcomes = 5
P(number divisible by 4 and 5) = `5/100 = 1/20`
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