gmatmarch2010 wrote:Scientists have determined that an effective way to lower cholesterol is to eat three servings of whole grains every
day. Studies have shown that the cholesterol levels of people who did so were significantly lower after six months
than were those of people who did not, even though the cholesterol levels of the two groups were the same before
the studies began. Clearly, eating whole grains can have an appreciable effect on cholesterol levels. The answer
to which of the following questions, if true, would be most useful in evaluating the claim about whole
grains above?

a Is it realistic to expect people to eat three servings of whole grains per day?
Incorrect : Issue is not about expecting ppl to eat three servings of whole grains per day. Hence Eliminated.

b Were the two groups of people in the study involved in the same exercise program?
Correct : If one group exercised vigorously and other group exercised moderately, then the results would differ even after eating same amount of whole grain servings per day.

c Can the same drop in cholesterol be achieved through medication?
Incorrect : Medication is irrelevant to the scope of the argument.

d Did the study continue to track the subjects beyond six months?
Incorrect : Issue is only about the study and its results.

e Are most consumers aware of the different between whole grains and processed grains?
Incorrect : Out of scope.

gmatmarch2010 wrote:@ phoenix

I also follow the same strategy for Evaluate type questions and I am confused with B and C.

Conclusion: Clearly, eating whole grains can have an appreciable effect on cholesterol levels.

In this case I will consider another alternative which can also help to reduce the cholesterol levels. B tells us about the difference in exercise program.

For C:

Can the same drop in cholesterol be achieved through medication?

Yes - This weakens the argument, because like an exercice program, medication can also help to reduce the cholesterol levels.

No - This strengthen the argument as it is not medication but the whole grains which has helped to reduce the cholesterol levels.

FYI - IMO - B

I know I am wrong but please help me to improve the way in which I am thinking.

Thanks Again Guys