Answer:
There is 1kg of zinc in 3kg of brass
Explanation:
Here, we are interested in knowing the amount of zinc present in 3kg of brass
Brass is an alloy of copper and zinc.
Now to get the amount of zinc present, we have to use the ratio;
The ratio of zinc is 1
So the amount of zinc present is calculated as follows;
Total ratio = 2+ 1 = 3
Thus;
1/3 * 3kg = 1kg