Question 476532
Number greater than 28, it means 29 and 30.

possible ways are (9,10,10), (10,9,10),(10,10,9) and (10,10,10).


we can select it by only 4 ways.

number of all possible ways to select 3 numbers = 10*10*10= 1000


probability = 4/1000 = 1/250


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