Mo2men wrote:showbu wrote:In the past, every ten-percentage-point increase in cigarette prices in the country of Coponia has decreased per capita sales of cigarettes by four percent. Coponia is about to raise taxes on cigarettes by 9 cents per pack. The average price of cigarettes in Coponia is and has been for more than a year 90 cents per pack. So the tax hike stands an excellent chance of reducing per capita sales of cigarettes by four percent. Which of the following is an assumption on which the argument depends?
A. Tobacco companies are unlikely to reduce their profit per pack of cigarettes to avoid an increase in the cost per pack to consumers in Coponia.
B. Previous increases in cigarette prices in Coponia have generally been due to increases in taxes on cigarettes.
C. Any decrease in per capita sales of cigarettes in Coponia will result mainly from an increase in the number of people who quit smoking entirely.
D. At present, the price of a pack of cigarettes in Coponia includes taxes that amount to less than ten percent of the total selling price.
E. The number of people in Coponia who smoke cigarettes has remained relatively constant for the past several years.
Dear GMATGuru,
Why is choice D wrong? How do we reach the assumption in this question?
Plan:
Raises the cigarette tax by 9 cents per pack.
Prediction:
Per capital sales will be reduced by 4 percent.
Why is the plan expected succeed?
In the past, every ten-percentage-point increase in cigarette prices in the country of Coponia has decreased per capita sales of cigarettes by four percent.
What does the plan assume?
The 9-cent tax increase =
a ten-percentage-point increase in cigarette prices.
If the new tax does not lead to a 10% increase in the cost of a pack of cigarettes, then the argument cannot conclude that cigarette sales will decrease by 4 percent.
Option A, negated:
Tobacco companies are likely to reduce their profit per pack to avoid an increase in the cost per pack to consumers in Coponia.
Here, companies are likely to reduce their profits so that the total cost of a pack of cigarettes does NOT increase, invalidating the conclusion that cigarette sales will decrease by 4 percent.
Since the negation of A invalidates the conclusion, A constitutes an ASSUMPTION: a statement that MUST BE TRUE for the conclusion to hold.
The correct answer is
A.
D, negated:
At present, the price of a pack of cigarettes in Coponia includes taxes that amount to ten percent or more of the total selling price.
It does not matter what portion of the current 90-cent selling price can be attributed to taxes: a tax increase of 9 cents will still constitute a ten-percent increase in the total selling price.
As a result, the argument may still conclude that sales will decrease by 4 percent.
Since the negation of D does not invalidate the conclusion, eliminate D.
Private tutor exclusively for the GMAT and GRE, with over 20 years of experience.
Followed here and elsewhere by over 1900 test-takers.
I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at
[email protected].
Student Review #1
Student Review #2
Student Review #3