Each questions given below has four groups of three statements each. Read the statements in each group carefully and identity the groups where the third statements in the group logically follows from the first two statements in the group.
(I) Some Kangaroos are not marsuplals, some opossums are not marsuplals, some Kangaroos are not opossums.
(II) Jack fruit is a fruit, Jill fruit it is a seed, some seeds are not fruits.
(III) All flowers bloom in March, Lillies bloom in March, Lilt is a flower.
(IV) All actors are factors, X is an actor, X is not a factor.

Options

A. Only IV
B. Only IV and III
C. Only IV and II
D. None of these

Answer

D

Explanation

Given are four groups of three statements each, where the third statements if logically drawn from the preceding two statements.
Group I : It is not a valid group are no conclusion can be drawn from the two negative statements.
Group II : It is not a valid group as no term is common in both the statements. Hence, no conclusions can be drawn from both the statements together.
Group III : It is not a valid group as middle term i.e., march. is not distributed in either of the statements.
Group IV : From two positive statements is negative conclusions cannot be drawn i.e. (X is not a fector).
Therefore, it is clear that none of them is valid.