Respuesta :
					                   John:  6 problems in 20 minutes  =  6/20 = 0.3 problem per minute
Juaquine: 1 problem in 4 minutes = 1/4 = 0.25 problem per minute
It looks like John wins the trophy.
					                
					                
					             Juaquine: 1 problem in 4 minutes = 1/4 = 0.25 problem per minute
It looks like John wins the trophy.
 
					                  