The Time It Takes to Complete a Certain Job Varies

question 247

Multiple Choice

The time it takes to complete a certain job varies inversely to the number of people working on that job. If it takes 28 hours for 11 carpenters to frame a house, then how long will it take 49 carpenters to do the same job?

• A) 40 hr
• B) 49 hr
• C) 6.3 hr
• D) 19.3 hr

---

Definitions:

Psychology

The systematic exploration of the human psyche and its operations, particularly those influencing actions within a specific situation.

1879

The year when the first psychological laboratory was established by Wilhelm Wundt, commonly regarded as the year psychology was founded as a science.

Dependent Variable

In an experiment, the variable that is being tested and measured, expected to change in response to manipulations of the independent variable.

Independent Variable

The variable in an experiment that is manipulated or changed by the researcher to observe its effect on the dependent variable.