Respuesta :
					                   35% because it ask what students don't study languages and 640 is just extra information  
					                
					                
					             
					                   100-65= 35 
640 x 35 = 22400
22400/100= 224
224 students don't study a language
					                
					             640 x 35 = 22400
22400/100= 224
224 students don't study a language
