Respuesta :

So he started at
 9:30 a.m. 
three hours and ten minutes later
9+3 is 12
30 + 10 is 40
12:40 p.m. 
it took him 47 minutes to replace 
so 12:40 plus 47 minutes is 
1:27 p.m. 
He then rode for another 56 minutes to finish the race 
so 1:27 plus 56 minutes 
2:23 p.m.

Hope this helps :)