Question 450932
Filling the pool  1 job					
Tap	4minutes 					
It does 	  1/ 4	jobs in 1	minute				
Hose	12	minutes					
It does 	  1/12	of thejob in 1 	minute				
Pipe III	0	minutes					
It does 	#DIV/0!	of the job in 1 	minute				
							
Together they will do   1/ 4+ 1/12		
Together they will do  1/ 3of the job in one minute 0.33
So they will take 		3    	minutes				
m.ananth@hotmail.ca