Regulars Line Up to Spin the Giant Slot Machine at the Entrance

question 13

Multiple Choice

Regulars line up to spin the giant slot machine at the entrance to Ace Rothstein's Tangiers casino. They pour in the door at the rate of 300 per hour and it takes exactly ten seconds every time for the wheels to spin and inform the unlucky patron that they have lost a dollar rather than win a new Corvette. How long do customers wait in line on average?

• A)10 seconds
• B)15 seconds
• C)20 seconds
• D)25 seconds

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Definitions:

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The smallest unit of water (H2O), consisting of two hydrogen atoms bonded to a single oxygen atom, which is essential for all known forms of life.

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An image formed using ultrasound waves, commonly used for checking fetal development during pregnancy.

Radiograph

An image produced on a sensitive plate or film by X-rays, gamma rays, or similar radiation, commonly called an X-ray.

CT Scan

A diagnostic imaging technique that uses computer-processed combinations of many X-ray measurements taken from different angles to produce cross-sectional images of specific areas of a scanned object.