does anyone know probability????
posted by epicmathfailure .
The digits 2, 3, 4, 7, and 8 are each used once in a random order to form a fivedigit number. What is the probability that the resulting number is divisible by 4? Express your answer as a common fraction.

use prob, last digit has to be either 2,4, or 8 to be divisible by 4, and the tens digit for 2 will be either 3 or 7. for 4, it has to be either 2 or 8, and for 8, it will be either 2 or 4. 3*2

=6, and arrange the rest of the digits appropriately...i think...

3/10
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