Question 665699
Cyclist I	16	mph					
Cyclist II	20	mph					
Cyclist I		12:00					
Cyclist II		01:30					
Difference in time=		13:30	=>	1.50	hours		
Cyclist I	will have covered	24.00	miles		Cyclist II	starts	
catch up distance=		24.00	miles				
catch up speed =		20	-16				
catch up speed =		4	mph				
Catchup time = catchup distance/catch up speed							
catch up time=		6	hours