Question

While mining, John found a large metal bar that contained 15 pounds of zinc. John also determined that the bar was 60% zinc. What was the total weight of the metal bar in pounds? Round your answer to the nearest whole number if necessary.

Answer 1

The total weight of the metal bar in pounds is 25 pounds

Explanation:

Now, we have a metal bar which has a content of 60% zinc corresponding to 15 pounds.

Mathematically, let’s say the total weight of the metal composite is x pounds. It is 60% of this that is 15 pounds which is the content of the zinc

Mathematically;

60/100 * x = 15

60x = 15 * 100

60x = 1500

x = 1500/60

x = 25 pounds