SOLUTION: How many 3-digit numbers greater than 400 can you make using the numbers 2, 1, 4 and 3 only once each time?
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Question 301724: How many 3-digit numbers greater than 400 can you make using the numbers 2, 1, 4 and 3 only once each time?
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
The first number needs to be a 4 so that the number is > 400.
That leaves 3 numbers (1,2,3) for 2 positions.
numbers
or by brute force,
6 numbers.
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