In the question below are statements followed by three conclusions numbered I, II, and III. You have to take the given statements to be true even if they seem to be at variance with commonly known facts and then decide which of the given conclusions logically follows from the given statements.
All keys are chains
All chains are rings
All rings are necklace
I. Some rings are keys.
II. Some rings are not keys.
III. All chains are necklace.
Correct Answer : c ) Only conclusion I and II followExplanation :
Depicting the given statements through possible venn diagrams we get
From case 1 and case 2 we can say that conclusion I follows the statements.
From case 2 we can say that conclusion II is possible but not definite. So, conclusion II does not follow the statements.
From case 1 and case 2 we can say that conclusion III follows the statements.
Hence, (c) is the correct answer.
Such type of question is asked in various government exams like SSC CGL, SSC MTS, SSC CPO, SSC CHSL, RRB JE, RRB NTPC, RRB GROUP D, RRB OFFICER SCALE-I, IBPS PO, IBPS SO, RRB Office Assistant, IBPS Clerk, RBI Assistant, IBPS RRB OFFICER SCALE 2&3, UPSC CDS, UPSC NDA etc.