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Joined: 10 Apr 2012
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Since 1991, the population of FSU countries decreased by 7
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Updated on: 10 Aug 2013, 13:33
Updated on: 10 Aug 2013, 13:33
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Since 1991, the population of FSU countries decreased by 7 percent. Over the same period of time, annual consumption of dairy products in those countries decreased by 9.7 percent and annual consumption of alcohol decreased by 5.2 percent.
The information above, if true, provides most support to which of the following conclusions?
(A)The number of companies that produce dairy products in FSU countries has decreased since 1991.
(B)The proportion of people who drink alcohol in FSU countries has increased since 1991.
(C)Currently, sales by alcohol companies in FSU countries exceed sales by dairy companies.
(D)Since 1991, annual per capita consumption of alcohol in FSU countries has increased.
(E)Currently, annual consumption of alcohol in FSU countries exceeds that of dairy products.
The information above, if true, provides most support to which of the following conclusions?
(A)The number of companies that produce dairy products in FSU countries has decreased since 1991.
(B)The proportion of people who drink alcohol in FSU countries has increased since 1991.
(C)Currently, sales by alcohol companies in FSU countries exceed sales by dairy companies.
(D)Since 1991, annual per capita consumption of alcohol in FSU countries has increased.
(E)Currently, annual consumption of alcohol in FSU countries exceeds that of dairy products.
Originally posted by guerrero25 on 10 Aug 2013, 11:36.
Last edited by guerrero25 on 10 Aug 2013, 13:33, edited 1 time in total.
Last edited by guerrero25 on 10 Aug 2013, 13:33, edited 1 time in total.
Re: Since 1991, the population of FSU countries decreased by 7
[#permalink]
10 Aug 2013, 13:24
10 Aug 2013, 13:24
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IMPORTANT NOTES:
This question belongs to “Must be true” family.
Note #1: New information is not accepted in “must be true” family. We just extract conclusion by using information in the stimulus.
Note #2: larger % does not mean larger absolute value and vice versa
ANALYZE THE STIMULUS:
Fact: Since 1991, the population of FSU countries decreased by 7 percent.
Fact: Over the same period of time, annual consumption of dairy products in those countries decreased by 9.7 percent and annual consumption of alcohol decreased by 5.2 percent.
Note: only information about percentage provided.
ANALYZE EACH OPTION:
(A)The number of companies that produce dairy products in FSU countries has decreased since 1991.
Wrong. Out of scope.
(B)The proportion of people who drink alcohol in FSU countries has increased since 1991.
Wrong. Tempting, but we do not know the how may people out of all population drink alcohol in 1991 in order to compare. We only know annual consumption of all population.
(C)Currently, sales by alcohol companies in FSU countries exceed sales by dairy companies.
Wrong. As note #2 states, we cannot infer percentage value to absolute value if we do not know initial absolute value of each category.
(D)Since 1991, annual per capita consumption of alcohol in FSU countries has increased.
Correct. The decrease speed of population is faster than that of annual consuption of alcohol. Thus, the annual consumption of alcohol per capital increased.
Example:
Before: population: 100, annual consumption: 20 ==> annual consumption /capita = 20/100 = 0.2
After: population: 93 (decrease 7%), annual consumption: 18.96 (decrease 5.2%) ==> annual consumption /capita = 18.96/93 = 0.203
Clearly, annual consumption of alcohol per capital increased.
(E)Currently, annual consumption of alcohol in FSU countries exceeds that of dairy products.
Wrong. As note #2 states, we cannot infer percentage value to absolute value if we do not know initial absolute value of each category.
Hope it helps.
This question belongs to “Must be true” family.
Note #1: New information is not accepted in “must be true” family. We just extract conclusion by using information in the stimulus.
Note #2: larger % does not mean larger absolute value and vice versa
ANALYZE THE STIMULUS:
Fact: Since 1991, the population of FSU countries decreased by 7 percent.
Fact: Over the same period of time, annual consumption of dairy products in those countries decreased by 9.7 percent and annual consumption of alcohol decreased by 5.2 percent.
Note: only information about percentage provided.
ANALYZE EACH OPTION:
(A)The number of companies that produce dairy products in FSU countries has decreased since 1991.
Wrong. Out of scope.
(B)The proportion of people who drink alcohol in FSU countries has increased since 1991.
Wrong. Tempting, but we do not know the how may people out of all population drink alcohol in 1991 in order to compare. We only know annual consumption of all population.
(C)Currently, sales by alcohol companies in FSU countries exceed sales by dairy companies.
Wrong. As note #2 states, we cannot infer percentage value to absolute value if we do not know initial absolute value of each category.
(D)Since 1991, annual per capita consumption of alcohol in FSU countries has increased.
Correct. The decrease speed of population is faster than that of annual consuption of alcohol. Thus, the annual consumption of alcohol per capital increased.
Example:
Before: population: 100, annual consumption: 20 ==> annual consumption /capita = 20/100 = 0.2
After: population: 93 (decrease 7%), annual consumption: 18.96 (decrease 5.2%) ==> annual consumption /capita = 18.96/93 = 0.203
Clearly, annual consumption of alcohol per capital increased.
(E)Currently, annual consumption of alcohol in FSU countries exceeds that of dairy products.
Wrong. As note #2 states, we cannot infer percentage value to absolute value if we do not know initial absolute value of each category.
Hope it helps.
General Discussion
Re: Since 1991, the population of FSU countries decreased by 7
[#permalink]
10 Aug 2013, 12:12
10 Aug 2013, 12:12
is the OA D?
It is totally possible that the dairy consumption and the alcohol consumption are not related to each other
It is totally possible that the dairy consumption and the alcohol consumption are not related to each other
