__________________________________________________________________

Time factors are described in terms of hours or minutes. These are the terms used

to describe time factors:

__________________________________________________________________

Time, distance, and rate are factors used for determining scheduling calculations

for columns of all sizes. When two of the three factors are known, the third can

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.

__________________________________________________________________