SOLUTION: A certain automatic soldering machine requires a solder containing half tin and half lead. How much pure tin must be added to 52 kg of a solder containing 62% lead and 38% tin to r

Question 1056298: A certain automatic soldering machine requires a solder containing half tin and half lead. How much pure tin must be added to 52 kg of a solder containing 62% lead and 38% tin to raise the tin content to 50%?

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = kg of pure tin to be added
= kg of pure tin in
the original 52 kg of solder
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12.48 kg of pure tin must be added
--------------------------------------
check:

OK
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