Hi, Its been more than a month that I am preparing my CR module. But, every time I solve even a basic CR question, i land up to the incorrect answer. I watched the concept videos thrice, listened each and every line but still results are same, no progress and no accuracy.
Right now I am again solving the test problems, but on solving the first two questions, the results are same.
Please help me in the above context. Means what an individual thinks while solving a CR question ? How should i approach towards a question ?
Q1. Recent research indicates that mercury levels in the bodies of saltwater fish are higher now than they were a hundred years ago. Mercury from the fish accumulates in the base of the feathers of seabirds that eat saltwater fish. Feathers taken from seabirds stuffed and preserved in the 1900s were found to contain only half as much mercury as do feathers recently taken from living birds of the same species. The argument depends on the assumption that
a. The number of sources of pollutants in 1990s was much lower than it is now
b. The quantity of mercury found in the body of a saltwater fish depends on the amount of pollution in the ocean habitat of the fish.
c. The Same techniques used today were used to stuff and preserve birds in the 1900s.
d.The process used to preserve birds in the 1900s did not substantially decrease the amount of mercury in the birds’ feathers.
e.The Proportion of saltwater fish in the diet of seabirds has remained the same since the 1900s.
Q2. Modern physicians often employ laboratory tests, in addition to physical examinations, in order to diagnose diseases accurately. Insurance company regulations that deny coverage for certain laboratory tests therefore decrease the quality of medical care provided to patients. Which one of the following is an assumption that would serve to justify the conclusion above?
a.Laboratory tests are more costly to perform than are physical examinations.
b.Many physicians generally oppose insurance company regulations that, in order to reduce costs, limit the use of laboratory tests.
c.No disease can be accurately diagnosed through physical examination alone.
d.Many patients who might benefit from the uncovered laboratory tests do not have any form of health insurance.
e.Physical examinations and the uncovered laboratory tests together provide a more accurate diagnosis of many diseases than do physical examinations alone.
I am attaching a copy of my approach of solving a CR question in link below. Please help me in rectifying my mistakes.