College

Which of the following sets of three units are all metric measurements of volume?

A. hectoliter, liter, milliliter
B. deciliter, centiliter, pint
C. cup, quart, gallon
D. dekameter, centimeter, kilometer

Answer :

To determine which set of three units are all metric measurements of volume, let's analyze each option provided:

1. Hectoliter, Liter, Milliliter:
- Hectoliter, liter, and milliliter are all part of the metric system and are units used specifically for measuring volume.
- A liter is a base unit of volume in the metric system, a milliliter is one-thousandth of a liter (1 milliliter = 0.001 liters), and a hectoliter is 100 liters.

2. Deciliter, Centiliter, Pint:
- Deciliter and centiliter are metric measurements of volume. A deciliter is one-tenth of a liter (1 deciliter = 0.1 liters), and a centiliter is one-hundredth of a liter (1 centiliter = 0.01 liters).
- However, pint is not a metric unit; it is a unit of volume commonly used in the United States and the United Kingdom.

3. Cup, Quart, Gallon:
- Cup, quart, and gallon are not metric units. They are part of the customary system used primarily in the U.S.

4. Dekameter, Centimeter, Kilometer:
- Dekameter, centimeter, and kilometer are metric units, but they measure length, not volume.

The correct set consists of units that are entirely metric and specifically measure volume, which is the first option: hectoliter, liter, and milliliter. Therefore, the correct answer is the first set.