Which of the following is the mostly likely weight of a pencil?
A.
25 kg
B.
25 cm
C.
25 mg
D.
25 g
The Correct answer and Explanation is:
The correct answer is:
D. 25 g
Explanation:
When estimating the weight of a pencil, it’s important to consider typical weights in relation to common measurement units. Let’s break down each option to understand why 25 grams is the most appropriate choice:
- 25 kg (kilograms): A pencil weighing 25 kilograms would be extraordinarily heavy and unrealistic. For comparison, 25 kg is approximately the weight of a large cat or a small dog. Such a weight is far beyond the norm for any common office or writing instrument, including pencils.
- 25 cm (centimeters): This option represents a unit of length, not weight. The weight of an object and its length are measured in different units, so this option does not apply to the question about weight.
- 25 mg (milligrams): This weight, 25 milligrams, is very light and is equivalent to 0.025 grams. While it is true that pencils can be quite light, 25 milligrams is too small for a typical pencil. For instance, even the lightest pencil is generally much heavier than 25 mg.
- 25 g (grams): This is the most realistic weight for a pencil. Standard pencils typically weigh between 5 to 15 grams. Therefore, a weight of 25 grams is plausible, accounting for variations such as the size of the pencil or additional features like an eraser or a thicker barrel. Pencils that include extra components or are made from different materials might approach this weight, making it the most reasonable option.
In conclusion, a weight of 25 grams aligns best with the actual weight of a standard pencil, considering variations and additional components. The other options either represent weights that are too extreme or units that are not related to weight.