M mathe25 Junior Member Joined Oct 13, 2011 Messages 50 Apr 11, 2013 #1 [h=1]I need to Find the sum of all five-digit numbers that are formed by using the digits 1 2 3 4 and 5 once and only once?[/h]
[h=1]I need to Find the sum of all five-digit numbers that are formed by using the digits 1 2 3 4 and 5 once and only once?[/h]
D Deleted member 4993 Guest Apr 11, 2013 #2 mathe25 said: I need to Find the sum of all five-digit numbers that are formed by using the digits 1 2 3 4 and 5 once and only once? Click to expand... Did you try to figure out the number of numbers that would be created with this restriction? Try to list those and discover the pattern! Please share your work with us. You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL: http://www.freemathhelp.com/forum/th...217#post322217 We can help - we only help after you have shown your work - or ask a specific question (e.g. "are these correct?")
mathe25 said: I need to Find the sum of all five-digit numbers that are formed by using the digits 1 2 3 4 and 5 once and only once? Click to expand... Did you try to figure out the number of numbers that would be created with this restriction? Try to list those and discover the pattern! Please share your work with us. You need to read the rules of this forum. Please read the post titled "Read before Posting" at the following URL: http://www.freemathhelp.com/forum/th...217#post322217 We can help - we only help after you have shown your work - or ask a specific question (e.g. "are these correct?")
H HallsofIvy Elite Member Joined Jan 27, 2012 Messages 7,760 Apr 13, 2013 #3 There are 5!= 120 such numbers. You could just write them out and count! (This problem has nothing to do with Calculus.) Last edited: Apr 14, 2013
There are 5!= 120 such numbers. You could just write them out and count! (This problem has nothing to do with Calculus.)
