Phone Charge

[umaa]

A phone company charges 3/4 of its regular per-minute rate for
long-distance calls for each minute in excess of 1000 per
month, excluding calls made on Sundays, and 1/2 of its regular per-minute rate for all long-distance calls made on Sundays. How much did the phone company charge Victoria last month?

(A) Last month, Victoria made a total of 1500 minutes worth of long-distance calls, including 200 minutes worth on Sundays.

(B) The regular rate for long-distance calls is $0.10 per minute.

[pandeyvineet24]

Should be C.

Total cost = 1000 * 0.10 + (300 * 0.75 * 0.10) + (200 * 0.5 * 0.10)

[umaa]

But we don't know whether he called all the sunday 200 mins within the first 1000 mins or after 1000 mins. right?

[tngearhart]

You may have misread the question. The phone company charges 1/2 it's normal charge for Sunday calls, regardless of whether the caller has made any other calls. So if I make 200 minutes of calls on Sunday only and no other calls during weekdays, my bill will be $10 for the month. the 1000 minute threshold only applies to calls made Monday thru Saturday.

[umaa]

tngearhart,
thanks for pointing out. I misunderstood the question.