A Factory Makes Automobile Parts

question 155

Essay

A factory makes automobile parts. Each part has a code consisting of a digit, a letter, and a digit, with the digits distinct, such as 5C7, 1O6, or 3Z0. Last week the factory made 5,000 parts. Find the minimum number of parts that must have the same serial number.

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Definitions:

Ventricular Filling

The phase of the cardiac cycle in which the heart's ventricles fill with blood coming from the atria.

Atrial Contraction

The phase of the cardiac cycle in which the atria of the heart contract to pump blood into the ventricles.

QRS Complex

A series of three deflections in an electrocardiogram (ECG) representing the depolarization of the heart's ventricles before contraction.

Electrocardiogram

An Electrocardiogram (ECG) is a test that records the electrical activity of the heart to detect heart problems and monitor the heart's status.