Quote:
Approximately two hundred brands of personal computers are being manufactured, but we currently limit our inventory to only the eight most popular brands. We plan to increase greatly the number of computers we sell by expanding our inventory to include the ten best-selling brands.
Which of the following, if true, points out a major weakness of the plan above?
(A) The capabilities of three most popular personal computers add to be approximately equivalent, with no brand having consistent superiority in all respects.
(B) The seven most popular brands of personal computers account for almost all computers sold.
(C) As the users of personal computers become more sophisticated, they are more willing to buy less well-known brands of computers.
(D) Less popular brands of computers often provide less profit to the retailer because prices must be discounted to attract customers.
(E) The leading brand of personal computer has been losing sales to less popular brands that offer similar capabilities for less money.
Premise: Approx 200 brands of PCs are being manufactured.
Premise: We currently limit our inventory to the eight most popular brands.
Conclusion: We plan to greatly increase the number of computers we sell by expanding our inventory to include the ten best-selling brands.
We’re looking to weaken the argument.
A. Irrelevant. These brands are included in either inventory offering.
B. This weakens the argument. If the seven most popular brands account for a majority of sales, then it seems unlikely that adding the ninth and tenth most popular brands would
greatly increase the number of computers sold.
C. This potentially strengthens our argument, if by
less well-known they mean a preference for the ninth and tenth best-selling brands. It’s not the answer to our question though.
D. Irrelevant. We’re talking about numbers of computers sold, not profit.
E. The leading brand could be losing sales to the second or third leading brand, or it could be losing sales to the ninth or tenth leading brand. Without that being clarified, this choice has an ambiguous effect on the conclusion.
Best choice is B.