For quantity columns in a worksheet, which two formats can be chosen?

The appropriate formats for quantity columns in a worksheet are primarily focused on numerical representations, making "Number or money value" the best choice.

In many analytical and reporting scenarios, quantity columns need to present data in a way that allows for straightforward mathematical operations, such as addition or calculation of averages. The "Number" format is essential for expressing quantities in a standard form that can be utilized for such calculations. Meanwhile, the "money value" format is often used when dealing with financial data, which also requires precise numeric representation, particularly for accounting or budgeting purposes where quantities have monetary implications.

The other options provided involve formats that do not directly support the representation of quantities in a conventional or operational manner suitable for numerical analysis. For instance, formats like text, boolean, date, or time do not convey quantitative relationships effectively in the context of quantity measures. Hence, selecting "Number or money value" aligns with the essential requirements for accurately and meaningfully capturing and manipulating quantity data in a worksheet.