SOLUTION: How many grams of gold must be added to 500 grams of alloy containing 30% gold and 70% silver to obtain 40% gold and 60% silver?
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Question 1022164: How many grams of gold must be added to 500 grams of alloy containing 30% gold and 70% silver to obtain 40% gold and 60% silver?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = grams of gold to be added
grams of gold in 30% alloy
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83 and 1/3 grams of gold must be added
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check:
error due to rounding off
OK
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