BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Phone Charge

Expert replies
by umaa » Tue Jul 28, 2009 5:43 pm
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.
Join the discussion
Source: — Data Sufficiency |

by pandeyvineet24 » Tue Jul 28, 2009 5:57 pm
Should be C.

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

by umaa » Wed Jul 29, 2009 4:59 am
But we don't know whether he called all the sunday 200 mins within the first 1000 mins or after 1000 mins. right?
Join the discussion

by tngearhart » Wed Jul 29, 2009 1:55 pm
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.
Join the discussion

by umaa » Wed Jul 29, 2009 1:58 pm
tngearhart,
thanks for pointing out. I misunderstood the question.
Join the discussion