Question 452936
	percent	----------------quantity							
salt solution I	10---------------x	lb						
salt solution II20---------------12-x	lb						
Total	15.00%	----------------	12									
												
10x+20(12-x)=15	*12
10x+240-20x=180		
10x-20x=180-240		
-10x=-60							
/-10											
x=6lb ---10.00%		
6lb---- 20.00%