Question
Statement : All cups are bowls. All bowls
are trays. Some trays are plates. No plate is a spoon. Conclusion: No tray may be spoon. Some trays are cups. Some bowls are plates. No bowl is a plate. In each of the questions below are given four statements followed by four conclusions. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of given conclusions logically follows from the given statements disregarding commonly known facts.Solution
Some trays are plates(I) + No plate is a spoon(E)`=>` Some trays are not spoons(O)`=>` Probable conclusion`=>` No tray may be spoon(E). Hence, conclusion I will follow. All cups are bowls(A) + All bowls are trays(A)`=>` All cups are trays(A)`=>` conversion`=>` Some trays are cups(I). Hence, conclusion II will follow. A + I`=>` No conclusion. Hence, neither conclusion III nor IV will follow but they will make a complementary pair i.e I –E. Hence, either conclusion III or IV will follow.
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