# SOLUTION: two silver alloys contain 40% and 30% silver. how many kilograms of each alloy should be mixed to obtain 20 kilograms of 36% SILVER ALLOY?

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 Question 635070: two silver alloys contain 40% and 30% silver. how many kilograms of each alloy should be mixed to obtain 20 kilograms of 36% SILVER ALLOY?Answer by mananth(12270)   (Show Source): You can put this solution on YOUR website! percent ---------------- quantity Alloy I 40 ---------------- x Kg Alloy II 30 ------ 20 - x Kg Mixture 36 ---------------- 20 40x+30 (20-x)= 36*20 4000x+ 3000(20 -x)= 72000 4000x+ 60000-3000x= 72000 4000x- 3000x=72000-60000 1000 x = 12000 / 1000 x = 12 Kg 40.00% Alloy I 8 Kg 30.00% Alloy II m.ananth@hotmail.ca