SOLUTION: How many 4-digit numbers greater than 6000 can be formed with the digits 1,3,6 and 8 if no digit is repeated?

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Question 200122: How many 4-digit numbers greater than 6000 can be formed with the digits 1,3,6 and 8 if no digit is repeated?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
The first digit is a 6 or 8
The second is any 1 of the remaining 3
The next is any one of the remaing 2
Thelast is the 1 remaing digit
2*3*2*1=12
Proof
6138 8136
6318 8316
6813 8613
6183 8163
6381 8361