GATE 2017 EC – Question 5
Some tables are shelves. Some shelves are chairs. All chairs are benches. Which of the following conclusions can be deduced from the preceding sentences?
i. At least one bench is a table
ii. At least one shelf is a bench
iii. At least one chair is a table
iv. All benches are chairs
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Correct answer: (B) Only ii
Explanation
Some shelves are chairs and all chairs are benches, so those shelves are benches, which gives (ii). The other conclusions need a link that the statements do not give: the tables and the chairs are connected only through different sets of shelves, and "all chairs are benches" does not mean "all benches are chairs".