Question 1134503
<br>
We can't know which solution you have received is right if we don't know what solutions you have received.<br>
I provided my solution to this problem a few days ago.  If you have received other solutions (I didn't find any others on this site), then copy those other solutions into the post you make so we can look at them.<br>
I spent a considerable amount of time figuring out my approach to the solution of the problem, and I'm relatively confident that it was correct.  But I would gladly look at any other solution(s) you have received.