Final answer:
The typical sugar content in molasses for rum making is around 50%, but the provided answer choices do not match this information. Molasses sugar percentage can vary, and the question's options may refer to different molasses qualities without additional context.
Step-by-step explanation:
The average percentage of sugar in molasses used for rum making is typically around 50%, but this can vary depending on the source and processing method of the molasses. Molasses is a by-product of sugar refining and contains both sugar and non-sugar components. It's important to note that the choices provided in the question do not directly pertain to the percentage of sugar in molasses used for rum making. Answer options 38, 24, 87, and 55 are percentages and could potentially represent different qualities of molasses, but without additional context or a specific reference, they cannot be definitively linked to the sugar content in molasses for rum production.