BTGmoderatorDC wrote:What is the total cost to make 7 long distance telephone calls?
(1) The length of each call was at least 2 minutes.
(2) The rate for long distance calls is $0.32 per minute
OA E
Source: Princeton Review
When we SCAN the statements, we see the key phrase:
at least
This allows us to jump straight to...
Statements 1 and 2 combined
There are infinitely many scenarios that satisfy BOTH statements. Here are two:
Case a: Each call was 2 minutes long, for a total of 14 minutes. At $0.32 per minute, the answer to the target question is
the total cost = $0.32 x 14
Case b: Each call was 200 minutes long, for a total of 1400 minutes. At $0.32 per minute, the answer to the target question is
the total cost = $0.32 x 1400
Since we cannot answer the
target question with certainty, the combined statements are NOT SUFFICIENT
Answer: E
Cheers,
Brent
Brent Hanneson - Creator of GMATPrepNow.com
