The iron content in the tablet is 7.5%. Tablet weight 540 mg. How many mg of iron does a tablet contain?
| July 23, 2021 | education
We make the proportion in which we write down the mass of iron in the tablet as x mg.
In such a case, the total weight of the tablet will refer to 100% as well as the weight of iron x refers to 7.5%.
We get equality:
540/100% = x / 7.5.
100 * x = 540 * 7.5.
100 * x = 4050.
x = 4050/100 = 40.5 mg.
Answer: The mass of iron in a tablet is 40.5 mg.
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