SOLUTION: How many three-digit numbers greater than 300 can be formed from 0, 1, 2, 3, 4, 5 and 6, if each digit can be used only once?

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Question 479193: How many three-digit numbers greater than 300 can be formed from 0, 1, 2, 3, 4, 5 and 6, if each digit can be used only once?
Answer by Edwin McCravy(20054) About Me  (Show Source):
You can put this solution on YOUR website!
Choose the 1st digit any of 4 ways: 3, 4, 5, or 6
Choose the 2nd digit any of 6 ways: any of the six which 
you didn't choose for the 1st digit.
Choose the 2nd digit any of 5 ways: any of the five which 
you didn't choose for the 1st or 2nd digits.

Answer: 4󬝱 = 120 ways.


Edwin