Question 551707
	percent	----------------	quantity								
Acid 	25	----------------50	ml					
Pure acid	100	----------------x	ml					
Mixture	60	----------------	50+xml					
											
25*50+100x=60(50+x)
1250+100x=3000+60x			
100x-60	x=3000	-1250				
40	x	=	1750								
/	40										
x=	43.75	ml	of 	Pure acid