SOLUTION: HOW MUCH SALT MUST BE ADDED TO 60 KG OF A 20% SOLUTION OF SALT TO INCREASEE IT TO A 40% SOLUTION OF SALD

Question 607310: HOW MUCH SALT MUST BE ADDED TO 60 KG OF A 20% SOLUTION OF SALT TO INCREASEE IT TO A 40% SOLUTION OF SALD
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
HOW MUCH SALT MUST BE ADDED TO 60 KG OF A 20% SOLUTION OF SALT TO INCREASEE IT TO A 40% SOLUTION OF SALD
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Equation:
salt + salt = salt
0.20*60 + 1*x = 0.40(60+x)
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20*60 + 100x = 40*60 + 40x
60x = 20*60
x = 20 KG (amt of salt that must be added)
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Cheers,
Stan H.
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