Products of Measurements
When two measurements are multiplied together the product is of a type depending on the types of the measurements. The general theory is given by dimensional analysis. This analysis is routinely applied in physics but has also found applications in finance. One can only meaningfully add or subtract quantities of the same type but can multiply or divide quantities of different types.
A common example is multiplying speed by time gives distance, so
- 50 kilometers per hour × 3 hours = 150 kilometers.
Read more about this topic: Multiplication
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