Syllogism Online Quiz

Answer : A

Explanation

All pictures are credits (A) – conversion – some credits are pictures (I). Hence conclusion I follows. No figure is a picture (E) + all pictures are credits (A) = E + A = O ∗ = some credits are not figures. Hence conclusion II 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. All fouls are goals.

II. No goal is a score.

Conclusions:

I. No foul is a score.

II. At least some goals are fouls.

Answer : E

Explanation

All fouls are goals (A) + no Goal is a score (E) = A + E = E = no foul is a score. Hence conclusion I follows. Again, all fouls are goals (A) – conversion – some goal are fouls (I). Hence conclusion II also 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. No night is a day.

II. All days are noon.

Conclusions:

I. At least some noon are day.

II. No cover is a night.

Answer : A

Explanation

All days are noon (A) – conversion – some noon are day (I). Hence conclusion I follows. No night is a day (E) + all days are noon (A) = E + A = O ∗ = some noon are not nights. Hence conclusion II 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 5 - Statements:

I. Some brown are velvet.

II. All velvet are red.

Conclusions:

I. Some brown are red.

II. At least some red are velvet.

Answer : E

Explanation

Some brown are velvet (I) + all velvet are red (A) = I + A = I = some brown are red. Hence conclusion I follows. Again all velvet are red - conversion -some red are velvet. Hence conclusion II also 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. Some biology are zoology.

II. No zoology is a botany.

Conclusions:

I. No biology is a botany.

II. At least some biology are botany.

Answer : C

Explanation

Some biology are zoology (I) + no zoology is a botany (E) = I &plus E = O = some biology are not botany. But conclusion I and II make a complementary pair (I - E). Hence either I or II follows. So option C is the right answer.

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. Some numbers are digits.

II. No digit is a letter.

Conclusions:

I. No number is a letter.

II. At least some numbers are letters.

Answer : C

Explanation

Some numbers are digits (I) + no digit is a letter (E) = I + E = O = some numbers are not letters. But conclusion I and II make a complementary pair (I - E). Hence either I or II follows. So option C is the right answer.

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 intelligent are fools.

II. Some fools are great.

Conclusions:

I. Some intelligent are great.

II. All great are fools.

Answer : D

Explanation

Conclusion II is an immediate inference drawn from second statement and this is not valid as per rule of conversion. Conclusion 1 is a mediate inference. But as per table of mediate inference, I + I = no result. Hence none of the conclusion 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 9 - Statements:

I. All necks are vertebrae.

II. Some vertebrae are collar.

Conclusions:

I. Some necks are collar.

II. No neck is collar.

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 10 - Statements:

I. Some mads are braves.

II. All braves are quick.

Conclusions:

I. Some mads are quick.

II. All mads are quick.