Question 70

30 mL and 1 fl oz are equivalent measurements.

Both 30 mL and 1 fluid ounce (fl oz) represent the same volume, making this pair the correct choice.

A) 2.2 mg and 1 lb

This option is incorrect as 2.2 milligrams is a significantly smaller quantity than 1 pound. In fact, 1 pound equals approximately 453,592 milligrams, indicating that these two measurements do not express the same amount.

B) 30 mL and 1 fl oz

This option is correct as 30 milliliters is exactly equivalent to 1 fluid ounce. This equivalence is a standard conversion in fluid measurements, confirming that both express the same volume.

C) 15 mL and 1 tsp

This option is incorrect since 15 milliliters is equivalent to 3 teaspoons, not 1 teaspoon. Therefore, this pair does not represent the same amount.

D) 28 oz and 1 g

This option is also incorrect as 28 ounces is equal to approximately 793.8 grams, which is a much larger quantity. Thus, these measurements do not express the same amount.

Conclusion

The correct answer is B) 30 mL and 1 fl oz, as these two measurements are equivalent in volume. All other options fail to represent the same quantity, with significant discrepancies in measurement units, demonstrating the importance of understanding volume conversions.