Reverse Syllogism MCQ Quiz - Objective Question with Answer for Reverse Syllogism - Download Free PDF

According to the question, minimum possible diagram:

From statement I: Some Bags are Pouches. All Pouches are Clips. All Clips are Purses.

I. Some Pouches are Bags. → True (As some part of bags is common with pouches, therefore it is true)

II. Some Purses are Clips → True (As whole clips comes in purses, therefore it is true)

∴ Statement I will be the result of the given conclusions.

From statement II: All Purses are Bags. Some Clips are Pouches. Some Pouches are Bags.

I. Some Pouches are Bags. → True (As some part of bags is common with pouches, therefore it is true)

II. Some Purses are Clips → False (So it is possible but not definite)

∴ Statement II will not be the result of the given conclusions.

From statement III: Some Bags are Purses. Some Pouches are Clips. All Pouches are Bags.

I. Some Pouches are Bags. → True (As whole pouches comes in bags, therefore it is true)

II. Some Purses are Clips → False (So it is possible but not definite)

∴ Statement III will not be the result of the given conclusions.

From statement IV: Some Pouches are Bags. Some Clips are Pouches. All Purses are Clips.

I. Some Pouches are Bags. → True (As some part of bags is common with pouches, therefore it is true)

II. Some Purses are Clips → True (As whole purses comes in clips, therefore it is true)

∴ Statement IV will be the result of the given conclusions.

From statement V: Some Bags are Pouches. Some Clips are Bags. Some Purses are Clips.

I. Some Pouches are Bags. → True (As some part of bags is common with pouches, therefore it is true)

II. Some Purses are Clips → False (As restatement is never considered as true conclusion)

∴ Statement V will not be the result of the given conclusions.

Thus, Both statement I and IV follows.

Hence, "Option 5" is the correct answer.

According to the question, minimum possible diagram:

From statement I: No Forest is a Garden. Some Trees are Plants. All Gardens are Plants.

I. No Tree is Garden. → False (As no direct relation is given between garden and tree, therefore it is false)

II. Some Plants are Forests. → False (So it is possible but not definite)

∴ Statement I will not be the result of the given conclusions.

From statement II: Some Trees are Plants. No Forest is a Tree. All Plants are Gardens.

I. No Tree is Garden. → False (As some part of trees is common with plants which whole comes in gardens, therefore it is false)

II. Some Plants are Forests. → False (So it is possible but not definite)

∴ Statement II will not be the result of the given conclusions.

From statement III: No Garden is a Plant. Some Forests are Trees. All Trees are Plants.

I. No Tree is Garden. → True (As whole trees comes in plants which cannot be garden, therefore it is true)

II. Some Plants are Forests. → True (As some part of forest is common with trees which whole comes in plants, therefore it is true.)

∴ Statement III will be the result of the given conclusions.

From statement IV: All Gardens are Forests. No Tree is a Garden. Some Trees are Plants.

I. No Tree is Garden. → False (As restatement is never considered as true conclusion)

II. Some Plants are Forests. → False (So it is possible but not definite)

∴ Statement IV will not be the result of the given conclusions.

From statement V: Some Gardens are Forests. No Tree is a Plant. All Plants are Gardens

I. No Tree is Garden. → False (As no direct relation is given between garden and tree, therefore it is false)

II. Some Plants are Forests. → False (So it is possible but not definite)

∴ Statement V will not be the result of the given conclusions.

Thus, Only statement III.

Hence, "Option 1" is the correct answer.

According to the question, minimum possible diagram:

From statement I: Some Computers are Laptops. All Monitor are Keyboards. Some Keyboards are Computers.

I. Some Keyboards are Computers. → False (So it is possible but not definite)

II. Some Keyboards being Laptops is a possibility. → True (As no statement restricts keyboards from being laptop, therefore it is true)

∴ Statement I will not be the result of the given conclusions.

From statement II: Some Keyboards are Computers. Some Computers are Laptops. No Monitor are Keyboards.

I. Some Keyboards are Computers. → False (As restatement is never considered as true conclusion)

II. Some Keyboards being Laptops is a possibility. → True (As no statement restricts keyboards from being laptop, therefore it is true)

∴ Statement II will not be the result of the given conclusions.

From statement III: All Keyboards are Computers. All Computers are Laptops. Some Monitor are Keyboards.

I. Some Keyboards are Computers. → True (As whole keyboards comes in computers, therefore it is true)

II. Some Keyboards being Laptops is a possibility. → True (As no statement restricts keyboards from being laptop, therefore it is true)

∴ Statement III will be the result of the given conclusions.

From statement IV: Some Computers are Laptops. All Monitor are Keyboards. Some Keyboards are Computers.

I. Some Keyboards are Computers. → False (As restatement is never considered as true conclusion)

II. Some Keyboards being Laptops is a possibility. → True (As no statement restricts keyboards from being laptop, therefore it is true)

∴ Statement IV will not be the result of the given conclusions.

From statement V: All Computers are Laptops. No Monitor are Keyboards. No Keyboards are Computers.

I. Some Keyboards are Computers. → False (As direct relation is given between keyboards and computers, therefore it is false)

II. Some Keyboards being Laptops is a possibility. → True (As no statement restricts keyboards from being laptop, therefore it is true)

∴ Statement V will not be the result of the given conclusions.

Thus, Only statement III.

Hence, "Option 3" is the correct answer.

According to the question, minimum possible diagram:

From statement I: Some Pens are Tables. All Papers are Mobiles. Some Mobiles are Pens.

I. Some mobiles are not pens → False (As some part of mobiles is common with pens, therefore it is false)

II. Some mobiles being tables is a possibility → True (As no statement restricts some mobiles from being tables, therefore it is true)

∴ Statement I will not be the result of the given conclusions.

From statement II: Only a few Mobiles are Pens. All pens are Tables. All Papers are Mobiles

I. Some mobiles are not pens. → True (As only some part of mobiles can be pens which means some part cannot be pens, therefore it is true)

II. Some mobiles being tables is a possibility. → True (As no statement restricts some mobiles from being tables, therefore it is true)

∴ Statement II will be the result of the given conclusions.

From statement III: Only a few Mobiles are Pens. Some Pens are Tables. Some Papers are Mobiles.

I. Some mobiles are not pens. → True (As only some part of mobiles can be pens which means some part cannot be pens, therefore it is true)

II. Some mobiles being tables is a possibility. → True (As no statement restricts some mobiles from being tables, therefore it is true)

∴ Statement III will be the result of the given conclusions.

From statement IV: Only a few Pens are Tables. All Papers are Mobiles. All Mobiles are Pens.

I. Some mobiles are not pens. → False (As whole mobiles comes in pens, therefore it is false)

II. Some mobiles being tables is a possibility. → True (As no statement restricts some mobiles from being tables, therefore it is true)

∴ Statement IV will not be the result of the given conclusions.

From statement V: Only a few Pens are Tables. All Papers are Mobiles. No Mobiles are Pens.

I. Some mobiles are not pens. → False (As restatement is never considered as true conclusion)

II. Some mobiles being tables is a possibility. → True (As no statement restricts some mobiles from being tables, therefore it is true)

∴ Statement V will not be the result of the given conclusions.

Thus, Both statement II and III follows.

Hence, "Option 4" is the correct answer.

The least possible Venn Diagram is as follows:

Conclusions:

I. Some plates are bowls. → Follows (because all bowls are spoons and all spoons are plates, so we can say that some plates are definitely bowls.)

II. Some plates are spoons. → Follows (because all bowls are spoons and all spoons are plates, so we can say that some plates are definitely spoons.) 

Hence, “Both conclusions I and II follow.”.

Explanation:

Conclusions:

I. No coin is a bill → False(It is possible but not definite)

II. All notes being coins is a possibility → True(As there is no negative definite relation is mentioned between Notes and Coins, hence the possibility of all will be true.)

So, Only conclusion II follows

Hence, "Option 3" is the correct answer.

Explanation:

We draw a Venn diagram using the given statements:

All pens are books.
All books are novels.
All novels are good.

Now we consider the given conclusions:
I. Some novels are pens → Follows → Since 'all pens are books' and 'all books are pens' we can say that all pens are novels which can also be referred as some novels are pens and therefore the conclusion follows.
II. All books are good → Follows → We have 'all books are novels' and 'all novels are good' so there is an indirect relation between books and good and it is safe to say that all books are good thus the conclusion follows.
So both conclusions I and II follows.

Hence the correct answer is option 1.

From the given statements, the Venn diagram is:
        
 

I: Some scales are erasers: From the statements, we have 'all scales are pencils' & 'some pencils are erasers', but there is no relation between scales and erasers, therefore some scales are erasers is not correct. Thus conclusion does not follow. 

II: Some pencils are scales: Since 'all scales are pencils' it is safe to say that some pencils are scales. So the conclusion follows.

Only conclusion II follows.

Hence the correct answer option 2)

The least possible venn diagram is:

I. All girls are students. → False (Possible but not Definite)

II. Some students are girls. → False (Possible but not Definite)

Hence, neither conclusion I nor II follows.

I. Some R are not P: There is no relation given between R and P, therefore there is no evidence of some R are not P. Thus the conclusion does not follow.

II. Some R are not L: All R are not L and it is safe to say that some R are not L which makes this conclusion true. So the conclusion follows.

Only conclusion II follows.

Hence, the correct answer is option 4.

The least possible Venn diagram for the given statements is as follow:

Conclusions:

I. No watch is a pendulum → False (As, watch and cell have direct relation but no direct relation with pendulum. So, the part of the cell that is pendulum is not watch and rest part of the pendulum is not considered).

II. No pendulum is a watch → False ( As only the part of the cell which is pendulum is not watch rest part have no relation)

III. Some pendulum are cells → True (As It clearly visible some part of cell are pendulum).

IV. All pendulum are cells → False (As Some part of the cell is pendulum but not all part is considered as pendulum)

Hence, "Only conclusion III follows".

1. All machinery are cooler. No cooler is generator. Some refrigerator are generator. Some generator are AC.

Conclusions:

I. All machinery being generator is a possibility → False (as all machinery is cooler and no cooler is generator)

II. No machinery is refrigerator → False (as some part of machinery can be refrigerator)

III. Some AC are machinery is a possibility → True

2. No machinery is generator. No cooler is refrigerator. Some generator are AC. Some refrigerator are AC.

Conclusions:

I. All machinery being generator is a possibility → False (as no machinery is generator)

II. No machinery is refrigerator → False (as no definite relation exists)

III. Some AC are machinery is a possibility → True (possibility is shown as below)

3. All machinery are cooler. All cooler are refrigerator. Some refrigerator are generator. Some generator are AC. Some AC are TV.

Conclusions:

I. All machinery being generator is a possibility → True (possibility is shown as below)

II. No machinery is refrigerator → False (as no negative relation exists between machinery and refrigerator)

III. Some AC are machinery is a possibility → True (possibility is shown as below)

4. All machinery are cooler. No cooler is refrigerator. All refrigerator are generator. Some generator are AC. Some AC are not TV.

Conclusions:

I. All machinery being generator is a possibility → True

II. No machinery is refrigerator → True (as all machinery are cooler and no cooler is refrigerator)

III. Some AC are machinery is a possibility → True (possibility is shown as below)

5. Some machinery are not cooler. All cooler are refrigerator. Some refrigerator are not generator. Some generator are AC. Some AC are TV.

Conclusions:

I. All machinery being generator is a possibility → True

II. No machinery is refrigerator → False (as some part of machinery is not cooler and all cooler are refrigerator. But, some part of machinery can be refrigerator)

III. Some AC are machinery is a possibility → True 

Hence, only statement 4 is true for the given conclusions.

The least possible Venn Diagram is as follows:

Conclusions:

I. Some plates are bowls. → Follows (because all bowls are spoons and all spoons are plates, so we can say that some plates are definitely bowls.)

II. Some plates are spoons. → Follows (because all bowls are spoons and all spoons are plates, so we can say that some plates are definitely spoons.) 

Hence, “Both conclusions I and II follow.”.

The least possible venn diagram is:

I. Some wires are plates. → False

II. Some books are wires. → True

III. Some books are wallets. → True

Hence, only II and III follows.

1. Some bright are nights. All brights are dark. No bright is shine. Some days are shines.

Conclusions:

I. Some days are nights is a possibility → True (possibility is shown as below)

II. Some dark are not shines → True (as all bright are dark and no dark are shines)

III. Some nights are bright → True (as it is already given)

2. Some nights are bright. All bright are dark. Some bright are shines. No home is dark.

Conclusions:

I. Some days are nights is a possibility → False (as no relation of day and night is known)

II. Some dark are not shines → False (as no negative relation exist between dark and shine)

III. Some nights are bright → True (as some nights are bright and all bright are dark)

3. All nights are bright. All bright are dark. No bright is shine. No home is dark.

Conclusions:

I. Some days are nights. → False (as no relation of day and night is known)

II. Some dark are not shines → True (as all bright are dark and no bright is shine)

III. Some nights are bright → True (as all nights are bright)

4. All nights are bright. All bright are dark. No bright is shine. All days are dark.

Conclusions:

I. Some days are nights is a possibility → True (possibility is shown as below)

II. Some dark are not shines → True (as all bright are dark and no bright is shine)

III. Some nights are bright → True (as all nights are bright)

5. All nights are bright. All bright are dark. No home is night. Some days are shines.

Conclusions:

I. Some days are nights is a possibility → True (as no negative relation exist between days and nights)

II. Some dark are not shines → False (as no negative relation exist between dark and shines)

III. Some nights are bright → True (as all nights are bright)

Hence, answer is statement 1 and 4 are true.