Ch. 21 :- Syllogism : Exercise 2


✦ Directions : In each of the question below are given two statements followed by two conclusions numbered I and II. You have to take the two given statements to be true even if they seem to be at variance from commonly known facts and decide which of the given conclusion(s) logically follow(s) from the two given statements, disregarding commonly known facts.

Given your answer as
(a) if only conclusion I follows
(b) if only conclusion II follows
(c) if either I or II follows
(d) if neither I nor II follows
(e) if both I and II follow

1. Statements :
1.Some dogs are rats.
2.Some rats are lions.
Conclusions :
I. Some dogs are lions.
II. None of the dogs is a lion.

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2. Statements :
1. All doors are windows.
2. All windows are ventillators.
Conclusions :
I. All ventillators are doors.
II. All windows are doors.

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3. Statements :
1. All pencils are papers.
2. Some papers are books.
Conclusions :
I.Some pencils are books.
II.Some books are papers.

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4. Statements :
1. Some cups are bottles.
2.All bottles are glasses.
Conclusions:
I. Some cups are glasses.
II. Some glasses are bottles.

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5. Statements :
1. Some novels are epics.
2. All epics are dramas.
Conclusions :
I. Some novels are dramas.
II. Some epics are not novels.

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6. Statements :
1.Some schools are factories.
2. All factories are shops.
Conclusions :
I. All shops are factories.
II. Some shops are schools.

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7. Statements:
1. All trees are tigers.
2. Some tigers are rocks.
Conclusions :
I. Some trees are rocks.
II. No tree is rock.

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8. Statements :
1. Some hens are cows.
2. All cows are horses.
Conclusions :
I. Some horses are hens.
II. Some hens are horses.

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9. Statements :
1. All poets are readers.
2. No reader is wise.
Conclusions :
I. No poet is wise.
II. All readers are poets.

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10. Statements :
1. Some chairs are stools.
2. Table is a chair.
Conclusions :
I. Some stools are chairs.
II. Table is not a stool.

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11. Statements :
1. All businessmen are hard working.
2. No hard working men are superstitious.
Conclusions:
I. No businessmen are superstitious.
II. All superstitious are not businessmen.

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12. Statements :
1. All windows are doors.
2. No door is a wall.
Conclusions:
I. No window is a wall.
II. No wall is a door.

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13. Statements :
1. All poets are authors.
2. All singers are authors.
Conclusions:
I. All singers are poets.
II. Some authors are not singers.

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14. Statements :
1. Some trees are small.
2. All small are plants.
Conclusions:
I. All’plants are small.
II. All small are trees.

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15. Statements :
1. All educated people read newspapers.
2. Rahul does not read newspaper.
Conclusions :
I. Rahul is not educated.
II. Reading newspaper is not essential to be educated.

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16. Statements :
1. All plants are goats.
2. No goat is green.
Conclusions:
I. Some plants are green:
II. Those plants which are not goat are green.

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17. Statements :
1. Some girls are flowers.
2. Some flowers are books.
Conclusions:
I.’ Some girls are books.
II. No book is a girl.

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18. Statements :
1. Some pots are belts.
2. No belt is white.
Conclusions:
I. Some pots are white.
II. Some pots are not white.

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19. Statements :
1. All hill stations have a sunset point.
2. X is a hill-station.
Conclusions:
I. X has a sunset point.
II. Places other than hill stations do not have sunset points.

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20. Statements :
1. Some parrots are crows.
2. No crow is green.
Conclusions:
I. No parrot is green.
II. No crow is white.

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21. Statements :
1. All clerks are lazy.
2. Some men are clerks.
Conclusions:
I. All lazy are men.
II. Some men are lazy.

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22. Statements :
1. All goats are wolves.
2. Some wolves are tigers.
Conclusions:
I. Some goats are tigers.
II. Tigers, which are wolves, are not goats.

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23. Statements :
1. Some aeroplanes are living beings.
2. Some non-living beings are ghosts.
Conclusions:
I. Some aeroplanes are ghosts.
II. Some aeroplanes are not ghosts.

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24. Statements :
1. Some papers are needles.
2. All needles are sharp.
Conclusions:
I. All papers are sharp.
II. All needles are papers.

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25. Statements :
1. All bags are cakes.
2. All lamps are cakes.
Conclusions:
I. Some lamps are bags .
II. No lamp is a bag.

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26. Statements :
1. Some soldiers are famous.
2. Some soldiers are intelligent.
Conclusions:
I. Some soldiers are either famous or intelligent.
II. Some soldiers are neither famous nor intelligent.

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27. Statements :
1. Some men are educated.
2. Educated persons prefer small families .
Conclusions:
I. All small families are educated.
II. Some men prefer small families.

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28. Statements :
1. All players are tall.
2. Sohan is tall.
Conclusions:
I. Sohan is player.
II. Sohan is not a player.

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29. Statements :
1. All students are boys.
2. No boy is dull.
Conclusions:
I. No student is dull.
II. There are no girls in the class.

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30. Statements :
1. All scientists are researchers.
2. Some researchers are teachers.
Conclusions:
I. No scientist is a teacher.
II. Some teachers are scientists.

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31. Statements :
1. Some authors are teachers.
2. No teacher is a lady.
Conclusions:
I. Some teachers are not ladies.
II. Some ladies are teachers.

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32. Statements :
1. No women can vote.
2. Some women are politicians.
Conclusions:
I. Male politicians can vote.
II. Some politicians can vote.

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33. Statements :
1. All radios are pencils.
2. Some pencils are files.
Conclusions :
I. No radio is a file.
II. Some files are radios.

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34. Statements :
1. Some machines are racks.
2. All wheels are machines.
Conclusions :
I. Some wheels are racks.
II. Some racks are wheels.

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35. Statements :
1. All roads are poles.
2. No pole is a house.
Conclusions :
I. Some roads are houses.
II. Some houses are poles.

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