Build each friend's list from the pairs: A plays football, cricket and basketball; B plays football, cricket and hockey; C plays cricket, hockey and basketball; D plays basketball, football and hockey. The only person whose list holds football, basketball and hockey together is D: basketball and football come from the pair with A, and hockey from the pair with C.
Why each option is right or wrong
(a) Right. D plays basketball, football and hockey.
(b) Wrong. C plays cricket, hockey and basketball, but not football.
(c) Wrong. B plays football, cricket and hockey, but not basketball.
(d) Wrong. A has no hockey.
Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.
