Question 17
HardOriginal questionStatement: No member of the Class 10 science club at Oakridge School failed the term test in Mathematics. Irfan failed the term test in Mathematics.
Conclusions:
I. Irfan is not a member of the Class 10 science club at Oakridge School.
II. Irfan is weak at science.
Which conclusions follow?
Show the answer and explanation
Correct answer: A
Explanation
I follows: if Irfan were a club member, he could not have failed the test. He did fail, so he is not a member.
II does not follow: the statement is about a Mathematics test and club membership. It says nothing about Irfan's ability in science.
So only I follows.
Worth noting
Reasoning backwards from a rule ("no member failed; he failed; so he is not a member") is valid. Guessing a reason for his failure is not.
- Concept
- Valid reasoning from a 'no' rule
- Typical timeTypical
- 105 s
- Your timeYours
- —
Ten questions from Statements, Conclusions and Assumptions, at your own pace.