Mr. A randomly picks 3 distinct numbers from the set {1, 2, 3, 4,.....9} and arranges them in descending order to form a three digit number. Mr B. Randomly picks 3 distinct numbers from the set {1, 2, 3,......8} and also arranges them in  descending order to form a three digit number 

Probability that Mr. A’s 3 digit number is greater than Mr. B’s 3 digit number is 1/3

Probability that Mt A’S 3 digit number is always greater than Mr B’S 3 digit number is $\frac{1}{3}$

Probability that Mr. A and Mr.B has the same 3 digit number is $\frac{1}{84}$

Probability that Mr.A’s 3 digit number is greater than Mr. B’s 3 digit number is 37/56