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A four-digit number is formed by the digits 1,2,3,4 with no repetition. The probability that the number is odd is?
The total number of numbers=4!
For odd numbers,1 or 3 has to be at the unit place.
If 1 is at the unit place, then the total number of numbers=3!
And if 3 is at the unit place, then the total number of numbers=3!
Therefore the total number of odd numbers=6+6
Therefore required probability=12/24
By: bhavesh kumar singh ProfileResourcesReport error
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