13. Analloy of copper and zinc contains 45% copper and the rest is zin

1.	13. Analloy of copper and zinc contains 45% copper and the rest is zinc. Find the weight ofzinc in 2 kg of the alloy
Answer» So we know that 100% of the weight is 2kg, and from the info you gave, we can work out that 55% of that is zinc. First of all we need to find out how much 1% is worth and to do that we divide 2kg/100 = 0.02kg 1% = 0.02kg Next we simply times that by 55 to find the total weight of zinc55 x 0.02 = 1.1kg and if you need the weight of the copper is 0.9kg Like my answer if you find it useful!

13. Analloy of copper and zinc contains 45% copper and the rest is zinc. Find the weight ofzinc in 2 kg of the alloy

Answer»

So we know that 100% of the weight is 2kg, and from the info you gave, we can work out that 55% of that is zinc.

First of all we need to find out how much 1% is worth and to do that we divide 2kg/100 = 0.02kg

1% = 0.02kg

Next we simply times that by 55 to find the total weight of zinc55 x 0.02 = 1.1kg

and if you need the weight of the copper is 0.9kg

Like my answer if you find it useful!