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Logical Consistency

Q.No: 1
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. No attendants are qualified.
B. Some nurses are qualified.
C. Some nurses are not qualified.
D. All nurses are attendants.
E. All attendants are qualified.
F. Some attendants are qualified.

A
ABF
B
CDF
C
BDF
D
BDE
E
NA
Solution:
Q.No: 2
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. Mary is John's wife.
B. Mary and John danced together.
C. Mary wears John's ring.
D. Husband and wives danced the last waltz.
E. John loves Mary.
F. John danced last with Mary.

A
ADF
B
ABD
C
ACE
D
AEF
E
NA
Solution:
If Mary and John are wife and husband and the last waltz was danced by husbands and wives, it follows that John danced last with Mary.
Q.No: 3
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. All roses are fragrant.
B. All roses are majestic.
C. All roses are plants.
D. All plants need air.
E. All roses need air.
F. All plants need water.

A
ABC
B
BCD
C
CDE
D
CEF
E
NA
Solution:
Q.No: 4
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. Laxman is a man.
B. Meera is Laxman’s wife.
C. Some women are islands.
D. No man is an island.
E. Meera is not an island.
F. Laxman is not a island.

A
ADE
B
ABE
C
ADF
D
CDE
E
NA
Solution:
Laxman is a man and no man is an island, so Laxman cannot be an island.
Q.No: 5
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. College students are intelligent.
B. Intelligence is a collegian’s attribute.
C. Ram’s sister is a college student.
D. Ram is a college student.
E. All intelligent persons go to college.
F. Ram is an intelligent person.

A
ADF
B
BCD
C
ABF
D
ABD
E
NA
Solution:
If college students are intelligent and Ram is a college student, it follows that Ram is intelligent.
Q.No: 6
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. Smoking causes cancer.
B. All cigarettes are hazardous to health.
C. Smoking doesn’t cause cancer sometimes.
D. One brand of cigarettes is cham − cham.
E. Brand X causes cancer.
F. Cham − cham is bad for health.

A
ABE
B
BDF
C
ABD
D
ABC
E
NA
Solution:
If all cigarettes are hazardous to health and cham-cham is a brand of cigarette, then cham-cham would also be hazardous to health.
Q.No: 7
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. All good bridge players play good chess.
B. Many good chess players are not bridge players.
C. Goren is a good bridge player.
D. Goren plays chess well.
E. Spassky plays chess well.
F. Spassky plays bridge badly.

A
ABD
B
BEF
C
ACE
D
ACD
E
NA
Solution:
If all good bridge players play good chess, then Goran being a good bridge player should also play good chess.
Q.No: 8
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. All snakes are reptiles.
B. All reptiles are not snakes.
C. All reptiles are cold blooded.
D. All snakes lay eggs.
E. All reptiles lay eggs.
F. Snakes are cold blooded.

A
ADE
B
BDE
C
ABE
D
ACF
E
NA
Solution:
Q.No: 9
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. All leaves are green.
B. All leaves have chlorophyll.
C. Chlorophyll is green.
D. All plants have leaves.
E. All plants have chlorophyll.
F. Only leaves have chlorophyll.

A
BDE
B
BEF
C
BDF
D
AEF
E
NA
Solution:
Q.No: 10
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. Some men are bald.
B. Bald people are intelligent.
C. Raman is a man.
D. Raman is bald.
E. Raman is intelligent.
F. All men are intelligent.

A
ABF
B
BDE
C
BCD
D
BEF
E
NA
Solution:
If bald people are intelligent and Raman is bald, it follows that Raman is intelligent.
Q.No: 11
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. No barbarian is gentleman.
B. Some gentlemen are barbarians.
C. Some gentlemen are rude.
D. No gentlemen are rude.
E. Some barbarians are not rude.
F. All barbarians are rude.

A
ABE
B
BCE
C
ADF
D
BDE
E
NA
Solution:
Q.No: 12
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. Metal is good material for desks.
B. Desks are made of metal.
C. This object is not a desk.
D. This object is a desk.
E. This object is not made of metal.
F. This is made of metal.

A
ADF
B
BCE
C
ABD
D
BDF
E
NA
Solution:
Desks are made of metals. So if an object is a desk it should be made of metal.
Q.No: 13
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. Mathew and Paul are brothers.
B. Siblings are known to quarrel often.
C. Mathew and Paul don’t quarrel.
D. All those who quarrel are siblings.
E. Paul and Mathew quarrel often.
F. Mathew and Paul cannot be siblings.

A
BDE
B
ADF
C
CDE
D
ABE
E
NA
Solution:
Mathew and Paul are siblings and siblings are known to quarrel often. Therefore it follows that Mathew and Paul quarrel often.
Q.No: 14
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. Painting and music is art.
B. Art is symptom of culture.
C. Culture and art are complementary.
D. Music is a form of art.
E. Painting is a form of art.
F. Music shows culture.

A
BDF
B
AEF
C
ACE
D
CEF
E
NA
Solution:
Art is a symptom of culture and music is a form of art, therefore music also shows culture.
Q.No: 15
Test Name : CAT Paper 1991
Q 36 to 50 : Each of these questions contains six statements followed by four sets of combinations of three. Choose the set in which the statements are logically related.

A. Different hues are obtained from primary color.
B. A rainbow consists of several hues.
C. Blue and red can give different hues.
D. Red is a primary color.
E. Blue can give different hues.
F. Red can give different hues.

A
ACE
B
AEF
C
ADF
D
CDF
E
NA
Solution:
If primary colours give different hues, and red is a primary colour, it implies that red also gives different hues.
Q.No: 16
Test Name : CAT Paper 1994
Q41 - 50 : Each question contains six statements followed by four sets of combinations of three. Choose the set in which the combinations are logically related.

A. All vegetarians eat meat.
B. All those who eat meat are not vegetarians.
C. All those who eat meat are herbivorous.
D. All vegetarians are carnivorous.
E. All those who eat meat are carnivorous.
F. Vegetarians are herbivorous.

A
BCE
B
ABE
C
ACD
D
ACF
Solution:
Q.No: 17
Test Name : CAT Paper 1994
Q41 - 50 : Each question contains six statements followed by four sets of combinations of three. Choose the set in which the combinations are logically related.

A. All roses have thorns.
B. All roses have nectar.
C. All plants with nectar have thorns.
D. All shrubs have roses.
E. All shrubs have nectar.
F. Some roses have thorns.

A
BEF
B
BCF
C
BDE
D
ACF
Solution:
Q.No: 18
Test Name : CAT Paper 1994
Q41 - 50 : Each question contains six statements followed by four sets of combinations of three. Choose the set in which the combinations are logically related.

A. No spring is a season.
B. Some seasons are springs.
C. Some seasons are autumns.
D. No seasons are autumns.
E. Some springs are not autumns.
F. All springs are autumns.

A
DFA
B
BEF
C
CEB
D
DEB
Solution:
Q.No: 19
Test Name : CAT Paper 1994
Q41 - 50 : Each question contains six statements followed by four sets of combinations of three. Choose the set in which the combinations are logically related.

A. All falcons fly high.
B. All falcons are blind.
C. All falcons are birds.
D. All birds are yellow.
E. All birds are thirsty.
F. All falcons are yellow.

A
ABC
B
CDF
C
DEF
D
BCA
Solution:
Q.No: 20
Test Name : CAT Paper 1994
Q41 - 50 : Each question contains six statements followed by four sets of combinations of three. Choose the set in which the combinations are logically related.

A. No wires are hooks.
B. Some springs are hooks.
C. All springs are wires.
D. Some hooks are not wires.
E. No hook is a spring.
F. All wires are springs.

A
AED
B
BCF
C
BEF
D
ACE
Solution:
Q.No: 21
Test Name : CAT Paper 1994
Q41 - 50 : Each question contains six statements followed by four sets of combinations of three. Choose the set in which the combinations are logically related.

A. Some abra are dabra.
B. All abra are cabra.
C. All dabra are abra.
D. All dabra are not abra.
E. Some cabra are abra.
F. Some cabra are dabra

A
AEF
B
BCF
C
ABD
D
BCE
Solution:
Q.No: 22
Test Name : CAT Paper 1994
Q41 - 50 : Each question contains six statements followed by four sets of combinations of three. Choose the set in which the combinations are logically related.

A. No plane is a chain.
B. All manes are chains.
C. No mane is a plane.
D. Some manes are not planes.
E. Some planes are manes.
F. Some chains are not planes.

A
ACD
B
ADF
C
ABC
D
CDF
Solution:
Q.No: 23
Test Name : CAT Paper 1994
Q41 - 50 : Each question contains six statements followed by four sets of combinations of three. Choose the set in which the combinations are logically related.

A. All dolls are nice.
B. All toys are nice.
C. All toys are dolls.
D. Some toys are nice.
E. Some nice things are dolls.
F. No doll is nice.

A
CDE
B
CEF
C
ACD
D
BEF
Solution:
Q.No: 24
Test Name : CAT Paper 1994
Q41 - 50 : Each question contains six statements followed by four sets of combinations of three. Choose the set in which the combinations are logically related.

A. Some buildings are not sky-scrappers.
B. Some sky-scrappers are not buildings.
C. No structure is a sky-scrapper.
D. All sky-scrappers are structures.
E. Some sky-scrappers are buildings.
F. Some structures are not buildings.

A
ACE
B
BDF
C
CDE
D
ACF
Solution:
Q.No: 25
Test Name : CAT Paper 1994
Q41 - 50 : Each question contains six statements followed by four sets of combinations of three. Choose the set in which the combinations are logically related.

A. All bins are buckets.
B. No bucket is a basket.
C. No bin is a basket.
D. Some baskets are buckets.
E. Some bins are baskets.
F. No basket is a bin.

A
BDE
B
ACB
C
CDF
D
ABF
Solution:
Q.No: 26
Test Name : CAT Paper 1995

Direction for questions 41 to 45: Each of the questions contains six statements followed by four sets of combinations of three. You have to choose that set in which the statements are logically related.

A
136
B
456
C
123
D
246
Solution:
Some dubbles are not bubbles but all dubbles are rubbles, so it follows that some of the rubbles are not bubbles.
Q.No: 27
Test Name : CAT Paper 1995

Direction for questions 41 to 45: Each of the questions contains six statements followed by four sets of combinations of three. You have to choose that set in which the statements are logically related.

A
165
B
236
C
241
D
235
Solution:
If all men are sad and all bad things are men, it follows that some sad things are bad.
Q.No: 28
Test Name : CAT Paper 1995

Direction for questions 41 to 45: Each of the questions contains six statements followed by four sets of combinations of three. You have to choose that set in which the statements are logically related.

A
123
B
256
C
126
D
341
Solution:
All Toms are bright, but no bright Tom is a Dick. Therefore, no Dick is a Tom.
Q.No: 29
Test Name : CAT Paper 1995

Direction for questions 41 to 45: Each of the questions contains six statements followed by four sets of combinations of three. You have to choose that set in which the statements are logically related.

A
234
B
341
C
453
D
653
Solution:
If all witches are devils and all devils are nasty, it implies that all witches are also nasty.
Q.No: 30
Test Name : CAT Paper 1995

Direction for questions 41 to 45: Each of the questions contains six statements followed by four sets of combinations of three. You have to choose that set in which the statements are logically related.

A
123
B
132
C
461
D
241
Solution:
No tingo is a bingo but all jingoes are bingoes. Hence, no jingo is a tingo.
Solution:


Solution:
If Mary and John are wife and husband and the last waltz was danced by husbands and wives, it follows that John danced last with Mary.


Solution:


Solution:
Laxman is a man and no man is an island, so Laxman cannot be an island.


Solution:
If college students are intelligent and Ram is a college student, it follows that Ram is intelligent.


Solution:
If all cigarettes are hazardous to health and cham-cham is a brand of cigarette, then cham-cham would also be hazardous to health.


Solution:
If all good bridge players play good chess, then Goran being a good bridge player should also play good chess.


Solution:


Solution:


Solution:
If bald people are intelligent and Raman is bald, it follows that Raman is intelligent.


Solution:


Solution:
Desks are made of metals. So if an object is a desk it should be made of metal.


Solution:
Mathew and Paul are siblings and siblings are known to quarrel often. Therefore it follows that Mathew and Paul quarrel often.


Solution:
Art is a symptom of culture and music is a form of art, therefore music also shows culture.


Solution:
If primary colours give different hues, and red is a primary colour, it implies that red also gives different hues.


Solution:


Solution:


Solution:


Solution:


Solution:


Solution:


Solution:


Solution:


Solution:


Solution:


Solution:
Some dubbles are not bubbles but all dubbles are rubbles, so it follows that some of the rubbles are not bubbles.


Solution:
If all men are sad and all bad things are men, it follows that some sad things are bad.


Solution:
All Toms are bright, but no bright Tom is a Dick. Therefore, no Dick is a Tom.


Solution:
If all witches are devils and all devils are nasty, it implies that all witches are also nasty.


Solution:
No tingo is a bingo but all jingoes are bingoes. Hence, no jingo is a tingo.


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