A mathematical expression also known as the present value of annuity of one is called ______. A. Load factor B. Demand factor C. Sinking fund factor D. Present worth factor

The correct answer is: D. Present worth factor.

The present worth factor is a mathematical expression that is used to calculate the present value of a future sum of money. It is also known as the present value of annuity of one. The present worth factor is calculated by dividing the future sum of money by the discount rate. The discount rate is the rate of interest that is used to calculate the present value of a future sum of money.

The present worth factor is used in a variety of financial applications, such as calculating the present value of a loan, the present value of an investment, and the present value of a pension.

The other options are incorrect because:

• Load factor is a measure of the amount of power that is required to operate a piece of equipment.
• Demand factor is a measure of the maximum amount of power that is required to operate a piece of equipment.
• Sinking fund factor is a mathematical expression that is used to calculate the amount of money that needs to be deposited into a
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  sinking fund in order to accumulate a future sum of money.