PT123.S2.Q13 > Explanation

SECTION 1 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6

PASSAGE 2

Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13

PASSAGE 3

Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20

PASSAGE 4

Question 21 Question 22 Question 23 Question 24 Question 25 Question 26

SECTION 2 · lr

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8 Question 9 Question 10 Question 11 Question 12 Question 13 Question 14 Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22 Question 23 Question 24 Question 25

SECTION 3 · lr

SECTION 4 · rc

PASSAGE 1

Question 1 Question 2 Question 3 Question 4 Question 5 Question 6 Question 7 Question 8

PASSAGE 2

Question 9 Question 10 Question 11 Question 12 Question 13 Question 14

PASSAGE 3

Question 15 Question 16 Question 17 Question 18 Question 19 Question 20 Question 21 Question 22

PASSAGE 4

Question 23 Question 24 Question 25 Question 26 Question 27

Just because the M group cans can’t be recycled further does not prove that there are twice as many M group cans as L group cans. It’s still possible that some aluminum from the L group was lost during the recycling process.

Even if the M group cans are lower quality than other cans, this doesn’t prove that there are twice as many M group cans as L group cans. We still don’t know whether some aluminum was lost during recycling.

In other words, no aluminum is lost when a can is recycled. Since half the aluminum in the M group came from the L group, and all L cans were recycled into M cans, and all cans use the same amount of aluminum, this guarantees the conclusion that the M group has twice as many cans.

This doesn’t guarantee that there are twice as many cans in the M group as the L group. Just because the L group cans were already made of recycled aluminum does not mean that no aluminum was lost when the L group cans were recycled into M group cans.

The argument only addresses cans made from aluminum; cans made from other materials are irrelevant. (E) doesn’t prove that there are twice as many cans in the M group.

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PrepTest 123 - Section 2 - Question 13

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