Table 3-12
Barb and Jim run a business that sets up and tests computers. Assume that Barb and Jim can switch between setting up and testing computers at a constant rate. The following table applies.

-Refer to Table 3-12. The number of minutes needed by Barb to test a computer is
A)36.
B)48.
C)60.
D)64.

Question

Table 3-12
Barb and Jim run a business that sets up and tests computers. Assume that Barb and Jim can switch between setting up and testing computers at a constant rate. The following table applies.
​
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-Refer to Table 3-12. The number of minutes needed by Barb to test a computer is
A)36. 
B)48. 
C)60. 
D)64.

Quizplus · Accepted Answer

According to the table, Barb can set up a computer in 60 minutes and she can set up and test a computer in 90 minutes. Therefore, it takes her 90 - 60 = 30 minutes to test a computer.

Table 3-12 Barb and Jim Run a Business That Sets Up and Up