Table 3-9
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 3-9.The number of minutes needed by Barb to test a computer is
A)64.
B)36.
C)48.
D)60.

Question

Table 3-9
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 3-9.The number of minutes needed by Barb to test a computer is
A)64. 
B)36. 
C)48. 
D)60.

Quizplus · Accepted Answer

According to the table, it takes Barb 24 minutes to set up a computer and 48 minutes to test one. Since they can switch between the two tasks at a constant rate, it means that Jim also takes 48 minutes to test a computer. Therefore, the answer is C) 48.

Table 3-9 Barb and Jim Run a Business That Sets Up and Up