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प्रश्न
What is the probability that a number selected at random from the numbers 3, 4, 5, ....9 is a multiple of 4?
योग
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उत्तर
numbers are 3, 4, 5, 6…9
TO FIND: Probability of Getting multiple of 4
Total number is 9−3+1=7
Numbers which are multiple of 4 between 3 and 9 are 4 and 8 Total number which are multiple of 4 between 3 to 9 is 4 and 8 is 2
`"We know that PROBABILITY" = "Number of favourable event"/"Total number of event"`
Hence probability of getting a number which is a multiple of 4 is `2/7`
Hence probability of getting a number which is a multiple of 4 is equal to `2/7`
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