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The only purpose for which a particular type of tape is [#permalink]
21 Jan 2005, 15:50
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The only purpose for which a particular type of tape is needed is to hold certain surgical wounds closed for ten daysâ€”the maximum time such wounds need tape. Newtape is a new brand of this type of tape. Newtapeâ€™s salespeople claim that Newtape will improve healing because Newtape adheres twice as long as the currently used tape does.
Which of the following statements, if true, would most seriously call into question the claim made by Newtapeâ€™s salespeople?
(A) Most surgical wounds take about ten days to heal.
(B) Most surgical tape is purchased by hospitals and clinics rather than by individual surgeons.
(C) The currently used tapeâ€™s adhesiveness is more than sufficient to hold wounds closed for ten days.
(D) Neither Newtape nor the currently used tape adheres well to skin that has not been cleaned.
(E) Newtapeâ€™s adhesion to skin that has been coated with a special chemical preparation is only half as good as the currently used tapeâ€™s adhesion to such coated skin.
I would go with 'D' - becos if the Newtape does not adhere to the skin properly it will not improve healing - which happens to be the claim made by Newtape's salespeople.
C - The salespeople's claim is not about the tape's adhesiveness so this can be eliminated.
The statement didn't say how long current tape can last, so (A) is no use because if a wound takes 10 days to heal and current tape can only last for 5 days, then it is indeed an improvement to make the tape last longer.
However C says current tape already last long enough, so there is no need for making a new type of tape that last even longer.