Bronze medal

To produce 1 kg of bronze must be 0.95 kg copper, 0.04 kg of tin, 0.01 kg zinc. The bronze medal has a weight of 8.5 g. How much copper, tin and zinc does medal have?

Correct result:

Cu =  8.075 g
Sn =  0.34 g
Zn =  0.085 g

Solution:

k=8.5/1=172=8.5 Cu=0.95 k=0.95 8.5=32340=32340 g=8.075 g
Sn=0.04 k=0.04 8.5=1750=1750 g=0.34 g
Zn=0.01 k=0.01 8.5=17200=17200 g=0.085 g



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