In each of the questions below are given four 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 from commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements disregarding commonly known facts.
Statements :
Some fans are coolers.
Some coolers are machines.
Some machines are computers.
All computers are televisions.
Conclusions
I : Some televisions are machines.
II : Some machines are fans.
III : No machine is fan.
Solution
The venn diagram for above statements is :
Conclusions
I : Some televisions are machines = true
II : Some machines are fans = either this or III is true
III : No machine is fan = either this or II is true
Thus, only I and either II or III follow.
=> Ans - (D)
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