A Water Tank Can Be Filled in 28 Hours by an Inlet

question 39

Multiple Choice

A water tank can be filled in 28 hours by an inlet pipe and emptied in 36 hours by an outlet pipe. How long will it take to fill the tank if both pipes are left open?

• A) 64 hours
• B) 32 hours
• C) 126 hours
• D) 36 hours
• E) 72 hours

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Definitions:

Shaking

Involuntary rhythmic movements or tremors of the body, which can be caused by emotional stress, neurological disorders, or other medical conditions.

Reappraisal Process

A cognitive strategy that involves changing the way one thinks about a potentially emotion-eliciting event in order to alter its emotional impact.

Sadness

An emotional state characterized by feelings of disappointment, loss, or despair.

Tears

A saline fluid produced by the lacrimal glands, serving both emotional and lubricative functions for the eyes.