Question 467444
-----------	percent	----------------	quantity										
Antifreeeze I	25	----------------			70	L							
Antifreeze II	60	----------------			x	L							
Total	50	----------------	70	+	x	L							
													
25*70+60*x=50(70+x)
													
1750+60x=3500+50x					
													
60x-50x=3500-1750					
													
10x=1750										
													
/10											
													
x=175	L	60	%	Antifreeze II