Table 3-13 Juanita and Shantala Run a Business That Programs and Tests

Multiple Choice

Table 3-13
Juanita and Shantala run a business that programs and tests cellular phones. Assume that Juanita and Shantala can switch between programming and testing cellular phones at a constant rate. The following table applies.
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-Refer to Table 3-13. The number of minutes needed by Juanita to program a cellular phone is

A) 4.
B) 5.
C) 7.5.
D) 15.