Syllogisms & Venn aptitude

Question 1

Statements: All pens are books. All books are bags.
Conclusions: I. All pens are bags. II. Some bags are pens.

Accepted Answer

Both I and II follow

Answer

Only I follows

Answer

Only II follows

Answer

Neither I nor II follows

Question 2

Statements: Some cats are dogs. No dog is a rat.
Conclusions: I. Some cats are not rats. II. No cat is a rat.

Accepted Answer

Only I follows

Answer

Only II follows

Answer

Both I and II follow

Answer

Neither I nor II follows

Question 3

Statements: All roses are flowers. Some flowers are red.
Conclusions: I. Some roses are red. II. All red things are flowers.

Accepted Answer

Neither I nor II follows

Answer

Only I follows

Answer

Only II follows

Answer

Both I and II follow

Question 4

Statements: Some keys are locks. Some locks are doors.
Conclusions: I. Some keys are doors. II. No key is a door.

Accepted Answer

Either I or II follows

Answer

Only I follows

Answer

Neither I nor II follows

Answer

Both I and II follow

Question 5

In a class of 50 students, 30 play cricket, 25 play football and 10 play both. How many students play neither game?

Accepted Answer

5

Answer

10

Answer

15

Answer

0

Question 6

In which group does the first class fully contain the second, while the third has nothing in common with either?

Accepted Answer

Metals, Iron, Wood

Answer

Animals, Dogs, Pets

Answer

Teachers, Women, Mothers

Answer

Birds, Parrots, Things that fly

Question 7

In a survey of 100 people, 60 read a Hindi newspaper, 50 read an English newspaper and 20 read both. How many read only the English newspaper?

Accepted Answer

30

Answer

40

Answer

20

Answer

50

Question 8

Statements: All engineers are graduates. Some graduates are managers. No manager is lazy.
Conclusions: I. Some engineers are managers. II. Some graduates are not lazy.

Accepted Answer

Only II follows

Answer

Only I follows

Answer

Both I and II follow

Answer

Neither I nor II follows

Statements: All pens are books. All books are bags. Conclusions: I. All pens are bags. II. Some bags are pens.