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(2) Wanda was charged $0.50 more for the first minute of the telephone call than for each minute after the first. E ### GMAT/MBA Expert Rich.C@EMPOWERgmat.com Elite Legendary Member Joined 23 Jun 2013 Posted: 9195 messages Followed by: 472 members Upvotes: 2867 GMAT Score: 800 Sat Sep 02, 2017 1:51 pm Hi AbeNeedsAnswers, We're told that Wanda's telephone call was rounded up to the nearest whole minute by her telephone company. We're asked for the number of minutes that she was charged for her telephone call. We can answer this question with a bit of logic and TESTing VALUES. 1) The total charge for Wanda's telephone call was$6.50.

With Fact 1, we know the total cost of the call, but we don't know what rate Wanda was charged per minute.
Fact 1 is INSUFFICIENT

2) Wanda was charged $0.50 more for the first minute of the telephone call than for each minute after the first. Fact 2 tells us the DIFFERENCE in the rates, but does not tells us the rates themselves nor the length of the call Fact 2 is INSUFFICIENT Combined, we know -The total cost of the call was$6.50
-The first minute cost $0.50 more than each of the additional minutes IF.... 1st minute =$1.00 and each addl. minute = $0.50, then the call would have been 12 minutes 1st minute =$1.50 and each addl. minute = \$1.00, then the call would have been 6 minutes
Combined, INSUFFICIENT

GMAT assassins aren't born, they're made,
Rich

_________________
Contact Rich at Rich.C@empowergmat.com

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