SOLUTION: How much water should be added to 1 gallon of antifreeze to obtain a solution that is 60% antifreeze?
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Question 348076: How much water should be added to 1 gallon of antifreeze to obtain a solution that is 60% antifreeze?
Answer by Jk22(389) (Show Source): You can put this solution on YOUR website!
1 gallon should equal 60%. Let w water gallon added : the total is 1+w gallon, of which 60% is antefreeze, hence 1 gallon :
0.6*(1+w)=1=0.6+0.6w
0.4=0.6w
w=4/6=2/3~0.66 gallons.
Verif : Total : 1+2/3, % antifreeze : 1/(1+2/3)=3/(3+2)=3/5=60/100.
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