PT140.S1.Q17 > Analytics

SECTION 1 · 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 2 · lr

SECTION 3 · lr

SECTION 4 · 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

PASSAGE 4

Question 20 Question 21 Question 22 Question 23 Question 24 Question 25 Question 26 Question 27

The stimulus can be diagrammed as follows:

If a motor is sound-insulated, it can be used in institutional settings.

No motors manufactured by EM Industries are sound-insulated.

Some motors that can be used in institutional settings are not manufactured by EM Industries.

Could be false. While we know that every sound-insulated motor can be used in institutional settings, we do not know whether every motor that can be used in institutional settings is sound-insulated. (A) confuses the necessary and sufficient conditions.

Must be true. As shown below, by chaining the conditional claims, we see that “not made by EM Industries” is a necessary condition of “sound-insulated”.

Could be false. We know that some of the motors manufactured by EM Industries can’t be used in institutional settings, and it’s quite possible that all of them can’t!

Could be false. While we know that every sound-insulated motor is quiet enough to use in home appliances, we do not know whether every motor quiet enough for home appliances is sound-insulated. (D) confuses the necessary and sufficient conditions.

Could be false. We know that some of the motors manufactured by EM Industries can’t be used in institutional settings, but it’s possible that some can. There might be sufficient conditions for institutional use other than sound-insulation.

Question

79% of people who answer get this correct

This is a moderately difficult question.

CURVE

Score of students with a 50% chance of getting this right

25% 139

150

75% 161

Question Stem Tags

Must be true

Stimulus Tags

Conditional reasoning

Popularity Avg. score

156

79%

166

154

153

18%

160

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PrepTest 140 - Section 1 - Question 17

Difficulty

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