Syllogism Online Quiz

Answer : B

Explanation

No cat is a mouse (E) + some mice are birds (I) = E + I = O ∗ = some birds are not cats. Hence conclusion II follows. But conclusion I does not follow.

Two statements are given below followed by two conclusions numbered as I and II respectively. Consider the given statements as true even if they seem to be not. After reading all the conclusions conform which of the given conclusions logically follows, disregarding commonly known facts.

Q 2 - Statements:

I. Some chalks are dusters.

II. Some dusters are desks.

Conclusions:

I. Some dusters are chalks.

II. Some desks are dusters.

Answer : E

Explanation

Both the conclusions are immediate inferences drawn from statements and follow the rule of conversion.

Two statements are given below followed by two conclusions numbered as I and II respectively. Consider the given statements as true even if they seem to be not. After reading all the conclusions conform which of the given conclusions logically follows, disregarding commonly known facts.

Q 3 - Statements:

I. Some hearts are lungs.

II. No lung is kidney.

Conclusions:

I. Some lungs are hearts.

II. Some lungs are hearts.

Answer : A

Explanation

Conclusion I is the immediate inference drawn from first statement. For mediate inference, I + E = O. Therefore, from the pair of statements, conclusion some hearts are not kidney is valid. But this is not our conclusion. Hence only conclusion I follows.

Two statements are given below followed by two conclusions numbered as I and II respectively. Consider the given statements as true even if they seem to be not. After reading all the conclusions conform which of the given conclusions logically follows, disregarding commonly known facts.

Q 4 - Statements:

I. All rainy are spring.

II. Some spring are winter.

Conclusions:

I. Some rainy are winter.

II. No rainy is winter.

Answer : C

Explanation

Both the conclusions are mediate inferences. We know from table of mediate inference that A + I = no result. However, this conclusion forms the complementary pairs and comply the conditions, i.e. both the conclusions are I - E type and have the same subject and predicate. Hence either 1 or 2 follows.

Two statements are given below followed by two conclusions numbered as I and II respectively. Consider the given statements as true even if they seem to be not. After reading all the conclusions conform which of the given conclusions logically follows, disregarding commonly known facts.

Q 5 - Statements:

I. Some parrots are peacocks.

II. All peacocks are pigeons.

Conclusions:

I. Some parrots are pigeons.

II. All parrots are pigeons.

Answer : A

Explanation

Both the statements are aligned, i.e. predicate of the first is the subject of the second. From the table of mediate inference, we know that I + A = I. Hence conclusion some parrots are pigeons follows.

Two statements are given below followed by two conclusions numbered as I and II respectively. Consider the given statements as true even if they seem to be not. After reading all the conclusions conform which of the given conclusions logically follows, disregarding commonly known facts.

Q 6 - Statements:

I. No samsung is a nokia.

II. Some nokia are oppo.

Conclusions:

I. No samsung is a oppo.

II. Some oppo are not samsung.

Answer : B

Explanation

No samsung is a nokia (E) + some nokia are oppo (I) = E + I = O ∗ = some oppo are not samsung. Hence conclusion II only follows, but conclusion I does not follow.

Two statements are given below followed by two conclusions numbered as I and II respectively. Consider the given statements as true even if they seem to be not. After reading all the conclusions conform which of the given conclusions logically follows, disregarding commonly known facts.

Q 7 - Statements:

I. No cup is a glass.

II. Some glasses are bottles.

Conclusions:

I. No cup is a bottle.

II. Some bottles are not cups.

Answer : B

Explanation

No cup is a glass (E) + some glasses are bottles (I) = E + I = O ∗ = some bottles are not cups. Hence conclusion II follows, but conclusion I does not follow.

Two statements are given below followed by two conclusions numbered as I and II respectively. Consider the given statements as true even if they seem to be not. After reading all the conclusions conform which of the given conclusions logically follows, disregarding commonly known facts.

Q 8 - Statements:

I. Some ropes are tubes.

II. Some tubes are mats.

Conclusions:

I. Some tubes are ropes.

II. Some mats are tubes.

Answer : E

Explanation

Both the conclusions are immediate inferences drawn from statements and follow the rule of conversion.

Two statements are given below followed by two conclusions numbered as I and II respectively. Consider the given statements as true even if they seem to be not. After reading all the conclusions conform which of the given conclusions logically follows, disregarding commonly known facts.

Q 9 - Statements:

I. Some fruits are juices.

II. No juice is green.

Conclusions:

I. Some juices are fruits.

II. No fruit is green.

Answer : A

Explanation

Conclusion I is the immediate inference drawn from first statement. For mediate inference, I + E = O. Therefore, from the pair of statements, conclusion some fruits are not green is valid. But this is not our conclusion. Hence only conclusion I follows.

Two statements are given below followed by two conclusions numbered as I and II respectively. Consider the given statements as true even if they seem to be not. After reading all the conclusions conform which of the given conclusions logically follows, disregarding commonly known facts.

Q 10 - Statements:

I. No window is a glass.

II. Some glasses are doors.

Conclusions:

I. No window is a door.

II. Some doors are not windows.