High Level Syllogism Questions IBPS PO 2017
Today, we are going to share notes on Syllogism, Syllogism topic which is one of the most important topics of reasoning in competitive exams.
Syllogism questions are very common and frequently asked in major exams like IBPS PO Clerk, SBI Clerk, SSC 10+2, SSC CGL, MAT, CMat etc. Through different kinds of Syllogism questions an examiner assesses candidates' reasoning skills and the more a candidate is aware of different approach the more will he able to solve a blood relation question fast and with ease.
High Level Syllogism Questions
Directions (Q. 1 - 10) : In each question below there are three statements followed by four conclusions numbered, I, II, III and IV. You have to take the given statements to be true even if they seem to be at variance with commonly known facts. Read all the conclusions and then decide which of the given conclusions logically follows from the given statements, disregarding commonly known facts.
1. Statements:
a. No Cloud is Bird.
b. Some Goats are Birds.
c. All Cars are Goats.
Conclusions:
I. No Car is Cloud.
II. Some Cars are Birds.
III. No Bird is Car.
IV. Some Clouds are Goats.
1) Only III follows
2) Only either II or III follows
3) Only I follows
4) Only I and either II or III follow
5) None of these
2. Statements:
a. All Grapes are Bananas.
b. All Potatoes are Bananas.
c. Some Bananas are Mangoes.
Conclusions:
I. No Grape is Mango.
II. Some Potatoes are not Mangoes.
III. Some Grapes are Potatoes.
IV. All Mangoes are Grapes.
1) Only I follows
2) Either I or III follows
3) Only II & III follow
4) Only I, II & III follow
5) None of these
3. Statements:
a. Some Cats are Rats.
b. Some Rats are Ants.
c. Some Ants are Flies.
Conclusions:
I. Some Flies are Cats.
II. Some Flies are not Ants.
III. No Rat is Fly.
IV. No Cat is Fly.
1) Only I & IV follow
2) Only II follows
3) Only I & III follow
4) Only I or IV follows
5) None of these
4. Statements:
a. All Chalks are Dusters
b. Some Chalks are Boards.
c. Some Dusters are Pens.
Conclusions:
I. Some Pens are Chalks.
II. Some Dusters are Boards.
III. Some Pens are Boards.
IV. All Chalks are Pens.
1) Either I or IV follows
2) Only II & III follow
3) Either I or IV & II follow
4) Only II follows
5) None of these
5. Statements:
a. Some Bags are Books.
b. All Books are Boxes.
c. No Box is Board.
Conclusions:
I. Some Bags are not Boards.
II. Some Bags are not Boxes.
III. All Bags are Boxes.
IV. No Bag is Board.
1) Only I follows
2) I & either II or III folk
3) Only IV follows
4) Only II follows
5) None of these
6. Statements:
a. Some streets are roads.
b. Some roads are lanes.
c. Some lanes are highways.
Conclusions:
I. Some roads are not streets.
II. No highway is street.
III. Some streets are not roads.
IV. Some lanes are not roads.
1) Only III follows
2) Only IV and III follow
3) Either I or III follows
4) Both I and III follow
5) None of these
7. Statements:
a. Some pencils are pens.
b. All pens are erasers.
c. All staplers are erasers.
Conclusions:
I. Some pens are not pencils.
II. All erasers are pencils.
III. Some staplers are pens.
IV. Some staplers are pencils.
1) Only I follows
2) Only II follows
3) Only III follows
4) Only IV follows
5) None of these
8. Statements:
a. Some tables are chairs.
b. No cupboard is table.
c. Some chairs are cupboards.
Conclusions:
I. Some chairs are not tables.
II. All chairs are either tables or cupboard
III. Some chairs are both tables and cupboards.
IV. All chairs are tables.
1) Only I and IV follow
2) Only either II or III follow
3) Only IV follows
4) Either II or III & I follow
5) None of these
9. Statements:
a. All birds are animals.
b. Some animals are humans.
c. All humans are mammals.
Conclusions:
I. Some humans are not birds.
II. Some birds are humans.
III. Some animals are not mammals.
IV. All animals are mammals.
1) Only I and II follow
2) Either III or IV follows
3) Either I or II follows
4) Either I or II and either III or IV follow
5) None of these
What Others Are Reading
10. Statements:
a. Some leaves are fruits.
b. All branches are fruits.
c. Some roots are branches
Conclusions:
I. Some roots are fruits.
II. Some branches are leaves.
III. No leaf is branch.
IV. Some leaves are roots.
1) Either II or III and I follow
2) Only I follows
3) Only either II or III follows
4) Only I and III follow
5) None of these
Difficult Syllogism Solutions Answers
1.2 2.5 3.5 4.4 5.2
6. 5; All statements are I-type. Hence, no conclusion is possible with the combination of any two. And none of the conclusions follow from the conversion of any statement. Nor there is any complementary (I-O) pair.
7. 5; Some pencils are pens + All pens are erasers = Some pencils are erasers. On conversion, we get Some erasers are pencils. Hence II does not follow. I doesnot follow from Some pencils are pen. Again, Some pencils are erasers + Some erasers are staplers (conversion of last statement), No conclusion can be derived. Hence IV does not follow. Ill does not follow from the last two statements.
8. 5; Only III follows from the last statement and the conversion of the first statement.
9. 4; None of the conclusions follows. But the conclusion I and converted conclusion II make a complementary pair. Similarly, conclusion III and converted conclusion IV make the complementary pair.
10. 1; Some roots are branches + All branches are fruits = Some roots are fruits. Hence I follows. Again II and converted III make a complementary pair.