4-9. Calculating Time and Distance, Continued
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Time factors are described in terms of hours or minutes. These are the terms used
Time factors
to describe time factors:
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Time, distance, and rate are factors used for determining scheduling calculations
Calculating time,
for columns of all sizes. When two of the three factors are known, the third can
distance, and rate
easily be found by dividing a triangle as shown in Figure 4-4 and covering up the
unknown factor. The uncovered portion of the triangle provides you with the
formula for computing the unknown. For example, if distance (D) is unknown,
cover it, and rate (R) x time (T) remains. If rate is unknown, covering R leaves
D/T. If time (T) is the unknown, covering it leaves D/R as the formula.
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Continued on next page
TR2013
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