Decide What Values of the Variable Cannot Possibly Be Solutions $\frac { 247 } { 32 } \mathrm { hr }$

question 267

Multiple Choice

Decide what values of the variable cannot possibly be solutions for the equation.
-An experienced accountant can prepare a tax return in 13 hours. A novice accountant can do the job in 19 hours. How long will it take them to do the job working together?

• A) \(\frac { 247 } { 32 } \mathrm { hr }\)
• B) \(\frac { 1 } { 247 } \mathrm { hr }\)
• C) \(\frac { 1 } { 32 } \mathrm { hr }\)
• D) \(\frac { 247 } { 6 } \mathrm { hr }\)

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Definitions:

Net Operating Income

The profit generated from a business's operations after subtracting operating expenses, but before interest and taxes.

Degree Of Operating Leverage

A financial ratio that measures the sensitivity of a company's operating income to a change in its sales volume.

Variable Expenses

Expenses that change in proportion to the activity of a business, such as raw material costs or sales commissions.

Fixed Expenses

Expenses that remain constant regardless of production or sales volume, including rent, insurance, and salaries.