Question 558246
Trucker I		56	mph			1 hour early		
Trucker II		59	mph
					
Distance   		290	miles				
	Trucker I has traveled	56	miles   before	Trucker II starts	
When Trucker II starts distance between them  =	(290-56)=234 miles			
Let time they take to be be away 234 miles be	x	hours					
								
Time taken to meet is same								
t=d/r								
combined speed=	(56+59)=	115	mph					
								
115	x	=	234	
/115				
x=   	2.03	hours	

They can talk for 2.03 hours