Question 28
MediumOriginal questionStatement: Ravi tells his sister: "Take the metro to the book fair. At this hour it will be faster than a taxi."
Assumptions:
I. The metro is cheaper than a taxi.
II. Ravi's sister has never travelled by metro before.
Which assumptions are implicit?
Show the answer and explanation
Correct answer: C
Explanation
Negation test for I: if the metro cost the same as a taxi, Ravi's advice still makes sense, because his reason is speed, not cost. So I is not implicit.
Negation test for II: if his sister has used the metro many times, the advice still makes sense. So II is not implicit.
Neither I nor II is implicit. What Ravi does assume is that the metro goes to, or near, the book fair.
Worth noting
I is true in many cities, which is why it tempts. But an assumption is judged against the speaker's reason, not against general knowledge.
- Concept
- Judging an assumption against the stated reason
- Typical timeTypical
- 70 s
- Your timeYours
- —
Ten questions from Statements, Conclusions and Assumptions, at your own pace.