Question

an alloy is made up of 48%copper,24%zinc and the rest is tin.find the respective weights of each metal in 4.2 kg of the alloy

Answer 1

48 + 24 + x = 100

72 + x = 100

x = 100 - 72

x = 28 %

Answer 2

Answer:

Step-by-step explanation:

Percentage of copper is 48%

Weight of alloy is 4.2kg  

Weight of copper is given by  

100

48

​  

×4.2=2.016kg

Percentage of zinc  is 24%

Weight of alloy is 4.2kg  

Weight of copper is given by  

100

24

​  

×4.2=1.008

Percentage of copper is 100−48−24%=28%

Weight of alloy is 4.2kg  

Weight of copper is given by  

100

28

​  

×4.2=1.176kg