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Let ' m ' denotes the number of four dig...

Let ' m ' denotes the number of four digit numbers such that the left most digit is odd, the second digit is even and all four digits are different and ' n ' denotes the number of four digit numbers such that left most digit is even, second digit is odd and all four digit are different. If m=nk, then k equals :

A

`(4)/(5)`

B

`(3)/(4)`

C

`(5)/(4)`

D

`(4)/(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
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