2019 AMC 12B Problems/Problem 3

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Problem

If (n+1)!+(n+2)! = n!*440, what is the sum of the digits of n?

Solution

See Also

2019 AMC 12B (ProblemsAnswer KeyResources)
Preceded by
Problem 2
Followed by
Problem 4
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
All AMC 12 Problems and Solutions

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