Question 699503
Truck I 	30	km/h				
Truck II	50	km/h				
Truck I 		06:00				
Truck II		07:00				
Difference in time=		01:00	=>	1.00	hour	
Truck I 	will have covered	30.00	miles	before 	Truck II	starts
catch up distance=		30	miles			
catch up speed =		50	-30			
catch up speed =		20	mph			
Catchup time = catchup distance/catch up speed
=30/20					
catch up time=		1.5				
catch up time=		1.50	hours	


The Truck II will catch up at 8:30 AM