SuperOxy

[ashish.jere]

One of the limiting factors in human physical performance is the amount of oxygen that is absorbed by the muscles from the bloodstream. Accordingly, entrepreneurs have begun selling at gymnasiums and health clubs bottles of drinking water, labeled "SuperOXY," that has extra oxygen dissolved in the water. Such water would be useless in improving physical performance, however, since the amount of oxygen in the blood of people who are exercising is already more than the muscle can absorb.

Which of the following, if true, would serve the same function in the argument as the statement in boldface?

A. world-class athletes turn in record performance without such water

B. frequent physical exercise increases the body’s ability to take in and use oxygen

C. the only way to get oxygen into the bloodstream so that it can be absorbed by the muscles is through the lungs

D. lack of oxygen is not the only factor limiting human physical performance

E. the water lost in exercising can be replaced with ordinary tap water


Ron Purewal, could you please help me on this CR?
Thanks.

(Sorry to say,I do not have the OA as I picked this from another forum and the answer had not yet been posted)

[nipunsachdev]

Function of the sentence in boldface: Evidence to strengthen the conclusion that the water will not be useful.

Hence our job is to find another evidence that water will not help improving performance.

The only statement that does this is
"C. the only way to get oxygen into the bloodstream so that it can be absorbed by the muscles is through the lungs" - If this is the only way to get oxygen to the bloodstream and hence to the muscles, then SuperOXY will be useless

Why other choices are wrong:

A - Their performance could still be improved
B - That is one way to improve performance but the water could still be useful
D - The statement is irrelevant as the question is whether the SuperOXY will help improve oxygen intake.
E - The presented argument does not pertain to lost water. It just deals with oxygen intake.

Hope this helps

[RonPurewal]

Function of the sentence in boldface: Evidence to strengthen the conclusion that the water will not be useful.

Hence our job is to find another evidence that water will not help improving performance.

The only statement that does this is
"C. the only way to get oxygen into the bloodstream so that it can be absorbed by the muscles is through the lungs" - If this is the only way to get oxygen to the bloodstream and hence to the muscles, then SuperOXY will be useless

Why other choices are wrong:

A - Their performance could still be improved
B - That is one way to improve performance but the water could still be useful
D - The statement is irrelevant as the question is whether the SuperOXY will help improve oxygen intake.
E - The presented argument does not pertain to lost water. It just deals with oxygen intake.

Hope this helps

this is WONDERFUL.

not much i can do to improve on this answer!

here's one takeaway that you can get from it:
whenever a CR problem statement contains some sort of ambiguous term - such as "same function in the argument", "resolve the discrepancy", or some other thing - you should EXPRESS THESE VAGUE PHRASES IN MORE SPECIFIC TERMS.

in this problem, the vague phrase is "serve the same function in the argument as the statement in boldface".
as soon as we make clear exactly what this means (i.e., present a reason why the water will have no effect), it's much easier to answer the problem.

[tanyatomar]

another one very close to this one..

One of the limiting factors in human physical performance is the amount of oxygen that is absorbed by the muscles from the bloodstream. Accordingly, entrepreneurs have begun selling at gymnasiums and health clubs bottles of drinking water, labeled "SuperOXY," that has extra oxygen dissolved in the water. Such water would be useless in improving physical performance, however, since the only way to get oxygen into the bloodstream so that it can be absorbed bye the muscles is through the lungs.

Which of the following, if true, would serve the same function in the argument as the statement in boldface?

A. the water lost in exercising can be replaced with ordinary tap water
B. the amount of oxygen in the blood of people who are exercising is already more than the muscle can absorb C. world-class athletes turn in record performance without such water
D. frequent physical exercise increases the body’s ability to take in and use oxygen
E. lack of oxygen is not the only factor limiting human physical performance

OA : A
i chose D.

for d: if frequent physical exercise does increase body's ability to take in n use oxygen then the argument then body will use the oxygen fromblood more efficiently and wont need Super OXY...

dont understand A?? please explain..

[jlucero]

Not sure where you found this example but notice that it's the exact same as the original question with the bold face and the answer choice reversed. So the answer shouldn't be A for one. And the explanations for each incorrect answer choice were previously written (notice that these are jumbled in your question):

A - Their performance could still be improved
B - That is one way to improve performance but the water could still be useful
D - The statement is irrelevant as the question is whether the SuperOXY will help improve oxygen intake.
E - The presented argument does not pertain to lost water. It just deals with oxygen intake.