1.  Read the conclusion and then decide which of the given conclusions logically follows from the two given statements ?
Statements : All planets are moons.
        All moons are stars.
Conclusions : I. All moons are planets.
       II. All planets are stars.


if only conclusion I follows
if only conclusion II follows
if either I or II follows
If neither I nor II follows


Answer

 Option

Since both the statements are affirmative, the conclusion must be affirmative. However, conclusion I cannot follow as it contains the middle term. So, only conclusion II follows.

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2.  Read the conclusion and then decide which of the given conclusions logically follows from the two given statements ?
Statements : All men are dogs.
        All dogs are cat.
Conclusions : I. All men are dogs.
       II. All cat are men.


if only conclusion I follows
if only conclusion II follows
if either I or II follows
If neither I nor II follows


Answer

 Option

Since both the premises are affirmative, the conclusion must be affirmative. However,conclusion II being an A type proposition, distributes the term 'goats'. Since the term 'goats' is distributed in II without being distributed in any of the premises, so conclusion II cannot follow. Thus, only I follows.

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3.  Read the conclusion and then decide which of the given conclusions logically follows from the two given statements ?
Statements : All tubes are handles.
        All cups are handles.
Conclusions : I. All cups are tubes.
       II. Some handles are not cups.


if only conclusion I follows
if only conclusion II follows
if either I or II follows
If neither I nor II follows


Answer

 Option

Both the premises are A type propositions. So, in either, the middle term 'handles' forming the predicate is not distributed. Since the middle term is not distributed even once in the premises, so no conclusion follows.

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4.  Read the conclusion and then decide which of the given conclusions logically follows from the two given statements ?
Statements : All bags are cakes.
        All lamps are cakes.
Conclusions : I. Some lamps are bags.
       II. No lamps are bags.


if only conclusion I follows
if only conclusion II follows
if either I or II follows
If neither I nor II follows


Answer

 Option

Both the premises being A type propositions, the middle term cakes forming the predicate is not distributed in an of them. Since the middle term is not distributed even once in the premises, so no conclusion follows.

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5.  Read the conclusion and then decide which of the given conclusions logically follows from the two given statements ?
Statements : All All flowers are stems.
        All stems are roots.
Conclusions : I. All roots are flowers.
       II. All stems are flowers.


if only conclusion I follows
if only conclusion II follows
if either I or II follows
If neither I nor II follows


Answer

 Option

Conclusion I being an A type proposition, distributes the term 'roots'. Since the term 'roots' is distributed in I without being distributed in any of the premises, so conclusion I cannot follow. Conclusion II cannot follow as it contains the middle term.

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