55. If a label states that 1 mil contains 500 mg, how many mils are there if there are 1.5 grams?
Answer: D
There are 3 mils in 1.5 grams.
To determine the number of mils from 1.5 grams when the label indicates that 1 mil contains 500 mg, we first convert grams to milligrams. Since 1 gram equals 1000 mg, 1.5 grams equals 1500 mg. Dividing 1500 mg by 500 mg per mil gives us 3 mils.
A) 2
Option A is incorrect because if we calculate based on the provided information, 2 mils would only account for 1000 mg (2 x 500 mg), which does not satisfy the total of 1500 mg.
B) 5
Option B is incorrect as 5 mils would equal 2500 mg (5 x 500 mg), exceeding the total of 1500 mg. Thus, it does not reflect the correct conversion from grams to mils.
C) 9
Option C is also incorrect since 9 mils would total 4500 mg (9 x 500 mg), which is significantly higher than the available 1500 mg. Therefore, this option does not represent the correct quantity.
D) 3
Option D is correct as it accurately calculates the number of mils necessary to equal 1500 mg. By dividing 1500 mg by 500 mg per mil, we find that 3 mils is the precise amount.
Conclusion
The calculation clearly shows that 1.5 grams equals 1500 mg, which corresponds to 3 mils when using the conversion rate of 500 mg per mil. All other options fail to match this conversion, either underestimating or overestimating the necessary amount. Therefore, Option D is definitively correct.