Question 566414
Painting the room is 1 job					
Jo	5	hours			
She does 	  1/ 5	of the job in 1 	hour		
Mo	3	hours			
She does 	  1/ 3	of thejob in 1 	hour		
Together they will do 		  1/ 5	+	  1/ 3	+
Together they will do 		  8/15		of the job in one 	
So they will take 		1 7/8	hours