Direction: In each of the question below are Four statements following by Four conclusions numbered I, II, II and IV. You have to take the Four given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusion logically follows from the two statements disregarding commonly known fact.
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Statement:
All desks are chairs.
All chairs are tables.
All tables are boxes.
All boxes are trunks
Conclusions:
I. Some trunks are tables.
II. All chairs are boxes.
III. Some boxes are desks.
IV. All desks are trunks.
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- Only I, II and III follow
- Only I, II and IV follow
- Only II, III and IV follow
- All follow
- None of these
Correct Option: D
All tables are boxes + All boxes are trunks = A + A = A = All tables are → trunks → conversion Some trunks are tables (I) Hence I follows. All chairs are tables + All tables are boxes = A + A = A = All chairs are boxes Hence II follows. All desks are chairs + All chairs are boxes = A + A = A = All desks are boxes → conversion → some boxes are desks (I) Hence III follows. All desks are boxes + All boxes are trunks = A + A = A = All desks are trunks Hence IV follows.
