A phone company had two plans for business. Plan A charged $12.00 a day for unlimited long-distance calls. Plan B charged 8 cents a minute for long-distance calls. A business made 125 minutes of long-distance calls per day for 5 days. Which plan would be the better deal over a 5-day period, Plan A or B?
compare A:12.00*5 vs B:0.08*125*5
As you see, the 5-day period is useless. The better deal for 1 day is the better deal for any number of days, if the same number of minutes is used.