Question

Some hypothetical alloy is composed of 12.5 wt of metal A and _______ wt of metal B. What is the weight of metal B in the alloy?

1) 12.5
2) 25
3) 37.5
4) 50

Answer 1

To find the weight of metal B in the alloy, subtract the weight of metal A from the total weight of the alloy. In this case, metal B is 87.5% of the alloy's weight.

Step-by-step explanation:

To find the weight of metal B in the alloy, we need to know the total weight of the alloy and the weight of metal A. Since metal A is 12.5% of the alloy, metal B must be 100% - 12.5% = 87.5% of the alloy. Therefore, the weight of metal B in the alloy is 87.5% of the total weight.

Let's say the total weight of the alloy is 100 grams. Then the weight of metal B would be 87.5 grams.