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On her way home from work, Janet drives through several [#permalink]
10 Aug 2005, 08:38
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On her way home from work, Janet drives through several toobooths.
Is there a pair of these tollbooths that are less than 10 miles a part?
(1) The first tollbooth and the last tollbooth are 25 miles apart?
(2) Janet droves through 4 tollbooths on her way home from work?
A- Statement 1 Alone is sufficient
B- Statement 2 Alone is sufficient
C- Statement 1 and Statement 2 together are sufficient
D- Each statement alone is sufficient
E- None of these statements are sufficient
Consider 1) alone first. Since it only gives us the total distance between the first and last tollbooth, we cannot answer the question without knowing the number of tollbooth in between. Eliminate A) and D).
Consider 2) alone. We only know the number of toolbooth and without knowing the total distance in between, there is no way to asnwer the question. Eliminate B).
Consider 1) and 2) together and it can be figure out the distance between any 2 tollbooth. Eliminate E) and the answer is C).