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प्रश्न
A bag contains cards numbered from 1 to 49. A card is drawn from the bag at random, after mixing the cards thoroughly. Find the probability that the number on the drawn card is multiple of 5.
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उत्तर
Total number of cards = 49
Total number of outcomes = 49
The numbers 5, 10, 15, 20, 25, 30, 35, 40 and 45 are multiples of 5.
Total number of favourable outcomes = 9
∴ Required probability `="Total number of favourable outcomes"/"Total number of outcomes"=9/49`
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