Math Help - Trying to find how many different paths from point A to point B

1. Trying to find how many different paths from point A to point B

I have a 3X4 grid and point A is at (0,0) and point B is at (4,3). I can only go one step up or one step to the right at each move to make it from point A to point B. How many different paths from A to B are possible? I must take 4 steps to the right and 3 steps upward.

2. Re: Trying to find how many different paths from point A to point B

Originally Posted by ssmero01
I have a 3X4 grid and point A is at (0,0) and point B is at (4,3). I can only go one step up or one step to the right at each move to make it from point A to point B. How many different paths from A to B are possible? I must take 4 steps to the right and 3 steps upward.
How many ways are there to arrange the string $RRRRRUUU~?$