souvik101990 wrote:
From 2000 to 2010, beverage containers accounted for a steadily decreasing percentage of the total weight of domestic garbage in Brazil. The increasingly widespread practice of recycling aluminum and plastic was responsible for most of this decline. However, although aluminum recycling was more widely practiced in this period than plastic recycling, the total weight of plastic bottles in Brazil’s domestic garbage declined by a greater percentage during this time than the total weight of aluminum cans in Brazil’s domestic garbage.
Which of the following, if true in Brazil from 2000 to 2010, most helps to account for the apparent discrepancy?
(A) Consumers increasingly favored glass beverage containers over plastic ones.
(B) Plastic bottles were significantly heavier than aluminum cans of comparable size.
(C) Most recycled aluminum cans were beverage containers, but a significant fraction of recycled plastic bottles were not beverage containers.
(D) The total weight of plastic bottles purchased by Brazilians increased at a slightly faster rate than did the total weight of aluminum cans purchased by Brazilians.
(E) In Brazil, the total number of plastic bottles recycled between 2000 and 2010 was less than the total number of aluminum cans recycled during that time.
Verbal Question of The Day: Day 22: Critical Reasoning
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RSSFor All QOTD Questions Click HereBeverage containers/Total Garbage is decreasing - because aluminium and plastic are being recycled. So if it was 20% before, it is 10% now.
Aluminium recycling was more widely practiced than plastic recycling.
But "plastic bottles weight/total garbage weight" reduced more than "aluminium can weight/total garbage weight".
So say if "plastic bottles weight/total garbage weight" was 5%, it has come down to 2% while "aluminium can weight/total garbage" weight has come down from 5% to only 4%. More reduction in plastic weight.
Discrepancy - Though aluminium recycling is more popular, plastic beverage weight has come down more.
It seems that there is something other than recycling too that is reducing the plastic. Let's look at the options.
(A) Consumers increasingly favored glass beverage containers over plastic ones.
This is the answer. It tells us why plastic beverage weight is coming down more than aluminium weight. Plastic is being replaced by glass. So perhaps the plastic weight is going down from 5% to 3% because of that. Then from 3%, it is going down to 2% because of recycling.
(B) Plastic bottles were significantly heavier than aluminum cans of comparable size.
We don't know the terms in which we measure "aluminium recycling is more popular than plastic recycling" - is it units recycled or weight recycled. Hence, this statement does not explain the paradox.
(C) Most recycled aluminum cans were beverage containers, but a significant fraction of recycled plastic bottles were not beverage containers.
This is irrelevant. Note what our paradox is: Though aluminium recycling is more popular than plastic recycling, "plastic bottles weight/total garbage weight" reduced more than "aluminium can weight/total garbage weight".
What part of plastic bottles constituted beverage containers and what part of aluminium cans constituted beverage containers is irrelevant to our paradox. The weight of each is being compared with total garbage weight. The sentence about beverage containers reducing is given as context only.
(D) The total weight of plastic bottles purchased by Brazilians increased at a slightly faster rate than did the total weight of aluminum cans purchased by Brazilians.
With aluminium recycling being more popular and rate of buying aluminium being lesser, aluminium should have decreased by a greater percentage in the total garbage as compared with plastic. It doesn't resolve the paradox, it instead makes it more unlikely.
(E) In Brazil, the total number of plastic bottles recycled between 2000 and 2010 was less than the total number of aluminum cans recycled during that time.
If fewer plastic bottles were recycled as compared with number of aluminium cans, aluminium cans should have decreased by a greater percentage in the total garbage as compared with plastic bottles. It doesn't resolve the paradox, it instead makes it more unlikely.
Answer (A)