Board Thread:Contests and Competitions/@comment-29331244-20150513231444/@comment-24808864-20150514071405

OK, I guess that will be me then.

The pigeon will have traveled 60 km.

Interestingly, this problem could be set up and analyzed as an infinite geometric sequence and then the answer could be found with $$ \frac{g_1}{1-r} $$.

but.....

since the pigeon turns around "immediately" we might as well just use d=rt. The pigeon is always flying (with the constant speed and instant turnaround) so the distance that it will travel is just rate x time=60x1=60.