Use only the information stated below; treat the listed played sports as…
2013
Use only the information stated below; treat the listed played sports as exhaustive for this puzzle. Yadav, Arjun, Rajesh, and Kamal play cricket. Rajesh and Kamal play tennis but do not play football. Yadav does not play badminton but plays golf. Arjun does not play tennis. Kamal sometimes plays badminton. Who plays only cricket?
Answer: B. Arjun — ConceptIn a closed-information classification puzzle, the stated positive facts form the complete set relevant to the question. A negative fact excludes a…
- A.
Yadav
- B.
Arjun
- C.
Rajesh
- D.
Kamal
Attempted by 3 students.
Show answer & explanation
Correct answer: B
Concept
In a closed-information classification puzzle, the stated positive facts form the complete set relevant to the question. A negative fact excludes a category but does not add a positive membership.
To identify a person who belongs only to the common category, list every positive category attached to each person and select the row with no additional positive category.
Application
All four people are stated to play cricket.
Yadav also plays golf; Rajesh also plays tennis; Kamal plays tennis and sometimes badminton.
Arjun has no additional played sport in the stated data; the tennis statement excludes tennis rather than adding another sport.
Contrast and result
Yadav: cricket and golf are positive memberships, while badminton is excluded.
Rajesh: cricket and tennis are positive memberships, while football is excluded.
Kamal: cricket, tennis, and occasional badminton are positive memberships, while football is excluded.
Arjun: cricket is the only positive membership; tennis is excluded.
Therefore, using only the stated information, Arjun is the person who plays only cricket.