Agency Is Having Problems with Personal Phone Calls Made During

Multiple Choice

agency is having problems with personal phone calls made during working hours.Each minute of a personal call costs the agency $0.50 in wasted wages.The agency hires operators to monitor calls in order to attain the optimal number of personal calls minimize total cost of personal calls) . Based on the above information,if operators receive $25 an hour,what is the minimum possible total cost of personal calls per hour) ?

A) $460
B) $255
C) $120
D) $ 85
E) none of the above