If m denotes the number of 5 digit numbers if each successive digits are in their descending order of magnitude and n is the corresponding figure, when the digits are in their ascending order of magnitude, then (m-n) has the value:(A) 10C4(B) 9C5(C) 10C3(D) 9C3
If m denotes the number of 5 digit numbers if each successive digits are in their descending order of magnitude and n is the corresponding figure, when the digits are in their ascending order of magnitude, then (m-n) has the value:
(A) 10C4
(B) 9C5
(C) 10C3
(D) 9C3