Answer:

Step-by-step explanation:
Given
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Required
Determine the difference between the shortest and the longest
This question implies that we calculate the range.

From the table, we have:


So, we have:


Answer:
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Step-by-step explanation:
Answer:
Together they will complete the order in 6/5 hours.
Step-by-step explanation:
Lisa an experience shipping clerk can fill a certain order in 2 hours.
Jim a new clerk needs 3 hours to do the same job working.
For 1 hours Lisa can fill 1/2 a order.
For 1 hours Jim can fill 1/3 a order.
For 1 hours togethers can fill 1/2+ 1/3=5/6 a order.
We have the following proportion:

Together they will complete the order in 6/5 hours.