SOLUTION: How many numbers less than 5,000 of 4 different digits each can be formed from 0,1,2,3,4,5,6,7?

Algebra ->  Probability-and-statistics -> SOLUTION: How many numbers less than 5,000 of 4 different digits each can be formed from 0,1,2,3,4,5,6,7?      Log On


   

Question 1090587: How many numbers less than 5,000 of 4 different digits each can be formed from 0,1,2,3,4,5,6,7?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
So the first number can only be a 0,1,2,3, or 4.
Assuming you can repeat digits,
N=5%2A8%2A8%2A8=2560
Assuming you cannot repeat digits,
N=5%2A7%2A6%2A5=1050