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All questions of Syllogisms for UCAT Exam

Select the conclusions which follow the statement:
Statement: All cats are mammals. Some mammals are carnivorous. No carnivorous animals can fly.
  • a)
    Conclusion 1: Some cats can fly.
  • b)
    Conclusion 2: All carnivorous animals are mammals.
  • c)
    Conclusion 3: All cats are carnivorous.
  • d)
    Conclusion 4: Some mammals can fly.
  • e)
    Conclusion 5: No cats can fly.
Correct answer is option 'E'. Can you explain this answer?

Swati Sharma answered
1st conclusion – Does not follow because there is no information about cats being able to fly.
2nd conclusion – Does not follow because being carnivorous does not necessarily imply being a mammal.
3rd conclusion – Does not follow because not all cats are carnivorous.
4th conclusion – Does not follow because there is no information about mammals being able to fly.
5th conclusion – Follows because the statement explicitly states that no carnivorous animals can fly.

Select the conclusions which follow the statement:
Statement: All birds have feathers. Some birds can swim. All swimmers are athletes.
  • a)
    Conclusion 1: All athletes have feathers.
  • b)
    Conclusion 2: Some birds are athletes.
  • c)
    Conclusion 3: No non-birds have feathers.
  • d)
    Conclusion 4: All birds can swim.
  • e)
    Conclusion 5: Some athletes can swim.
Correct answer is option 'B,E'. Can you explain this answer?

1st conclusion – Does not follow because not all athletes are birds.
2nd conclusion – Follows because the statement states that some birds are athletes.
3rd conclusion – Does not follow because there is no information about non-birds having feathers.
4th conclusion – Does not follow because the statement only mentions that some birds can swim, not all birds.
5th conclusion – Follows because the statement states that all swimmers are athletes and some athletes can swim.

No snakes have legs. All lizards have legs. Some reptiles are snakes.
Select the conclusions which follow the statement:
  • a)
    Some reptiles are lizards.
  • b)
    All snakes are reptiles.
  • c)
    Some snakes have legs.
  • d)
    No reptiles have legs.
  • e)
    All lizards are reptiles.
Correct answer is option 'B,D,E'. Can you explain this answer?

1st conclusion – Does not follow because the statement mentions that some reptiles are snakes, not all reptiles are lizards.
2nd conclusion – Does follow because the statement establishes that all snakes have legs.
3rd conclusion – Does not follow because the statement explicitly states that no snakes have legs.
4th conclusion – Does follow because the statement establishes that no snakes have legs, and lizards are reptiles.
5th conclusion – Does follow because the statement establishes that all lizards have legs and all lizards are reptiles.

Select the conclusions which follow the statement:
Statement: All students in the class passed the math exam. Some students are excellent in science. No excellent science students failed the math exam.
  • a)
    Conclusion 1: All excellent science students passed the math exam.
  • b)
    Conclusion 2: No science students failed the math exam.
  • c)
    Conclusion 3: Some students failed the math exam.
  • d)
    Conclusion 4: Some excellent science students are not in the class.
  • e)
    Conclusion 5: All students who failed the math exam are not excellent in science.
Correct answer is option 'E'. Can you explain this answer?

Swati Sharma answered
1st conclusion – Does not follow because the statement does not provide information about all excellent science students passing the math exam.
2nd conclusion – Does not follow because the statement only mentions excellent science students, not all science students.
3rd conclusion – Does not follow because the statement states that all students in the class passed the math exam.
4th conclusion – Does not follow because the statement does not provide any information about excellent science students not being in the class.
5th conclusion – Follows because the statement explicitly states that no excellent science students failed the math exam.

Select the conclusions which follow the statement:
Statement: All doctors are highly educated individuals. Some highly educated individuals are successful entrepreneurs. No successful entrepreneurs work 9 to 5.
  • a)
    Conclusion 1: All doctors are successful entrepreneurs.
  • b)
    Conclusion 2: No successful entrepreneurs are doctors.
  • c)
    Conclusion 3: Some successful entrepreneurs work 9 to 5.
  • d)
    Conclusion 4: Some successful entrepreneurs are highly educated individuals.
  • e)
    Conclusion 5: All highly educated individuals work 9 to 5.
Correct answer is option 'D'. Can you explain this answer?

Swati Sharma answered
1st conclusion – Does not follow because not all doctors are successful entrepreneurs.
2nd conclusion – Does not follow because there is no information about the relationship between successful entrepreneurs and doctors.
3rd conclusion – Does not follow because the statement explicitly states that no successful entrepreneurs work 9 to 5.
4th conclusion – Follows because the statement states that some highly educated individuals are successful entrepreneurs.
5th conclusion – Does not follow because the statement does not provide any information about the working hours of highly educated individuals.

A recent survey found that 80% of people who exercise regularly have lower cholesterol levels. John exercises regularly and has been diagnosed with high cholesterol. Select the conclusions which follows the statement.
  • a)
    Regular exercise does not guarantee lower cholesterol levels.
  • b)
    John is part of the 20% who have higher cholesterol levels despite exercising regularly.
  • c)
    The survey results are inaccurate or unreliable.
  • d)
    John's high cholesterol level is unrelated to his regular exercise routine.
  • e)
    John should consider changing his exercise routine to lower his cholesterol.
Correct answer is option 'A,B'. Can you explain this answer?

Swati Sharma answered
1st conclusion – Does follow because the statement suggests that regular exercise does not always result in lower cholesterol levels, as John exercises regularly but still has high cholesterol.
2nd conclusion – Does follow because the statement implies that John falls into the 20% of people who have higher cholesterol levels despite exercising regularly.
3rd conclusion – Does not follow because there is no evidence or indication that the survey results are inaccurate or unreliable.
4th conclusion – Does not follow because the statement indicates that John's exercise routine is related to his high cholesterol level.
5th conclusion – Does not follow because the statement does not provide any information suggesting that John needs to change his exercise routine to lower his cholesterol.

Select the conclusions which follow the statement:
Statement: All dogs are loyal companions. Some loyal companions are cats. No cats are reptiles.
  • a)
    Conclusion 1: Some reptiles are dogs.
  • b)
    Conclusion 2: All dogs are cats.
  • c)
    Conclusion 3: No loyal companions are reptiles.
  • d)
    Conclusion 4: Some cats are dogs.
  • e)
    Conclusion 5: All reptiles are loyal companions.
Correct answer is option 'C,D'. Can you explain this answer?

Swati Sharma answered
1st conclusion – Does not follow because there is no information about reptiles being dogs.
2nd conclusion – Does not follow because dogs and cats are different animals.
3rd conclusion – Follows because the statement explicitly states that no cats are reptiles.
4th conclusion – Follows because the statement mentions that some loyal companions are cats.
5th conclusion – Does not follow because the statement does not provide any information about the relationship between reptiles and loyal companions.

The sun rises in the east. All birds can fly. Some birds are blue in color. No blue things can swim.
Select the conclusions which follow the statement.
  • a)
    Some things that can fly are blue.
  • b)
    All blue things can fly.
  • c)
    All birds that can swim are not blue.
  • d)
    Some blue things cannot swim.
  • e)
    All birds that are blue can swim.
Correct answer is option 'A,C'. Can you explain this answer?

Swati Sharma answered
1st conclusion – Does follow because some birds can be blue and can fly.
2nd conclusion – Does not follow because not all blue things can fly.
3rd conclusion – Does follow because no blue things can swim.
4th conclusion – Does not follow because there is no information about blue things' ability to swim.
5th conclusion – Does not follow because there is no information about the swimming ability of birds that are blue.

All roses are flowers. Some flowers are red. Some red things are beautiful.
Select the conclusions which follow the statement:
  • a)
    All beautiful things are roses.
  • b)
    Some roses are red.
  • c)
    Some beautiful things are flowers.
  • d)
    Some red things are roses.
  • e)
    All red flowers are beautiful.
Correct answer is option 'B,C'. Can you explain this answer?

Noah Brown answered
Conclusions that follow the statement:

B: Some roses are red.
- This conclusion follows because the given statement states that all roses are flowers, and some flowers are red. Since roses are a type of flower, it can be concluded that some roses are red.

C: Some beautiful things are flowers.
- This conclusion follows because the given statement states that all roses are flowers, and some flowers are red. Since roses are a type of flower, it can be concluded that some beautiful things (since some red things are beautiful) are flowers.

Explanation:

The given statement provides three pieces of information: all roses are flowers, some flowers are red, and some red things are beautiful. Based on this information, we can draw conclusions that logically follow.

B: Some roses are red.
- This conclusion is valid because the statement establishes that all roses are flowers, and some flowers are red. Since roses fall under the category of flowers, it can be inferred that there are red roses. However, it does not imply that all roses are red, as there may also be roses of other colors.

C: Some beautiful things are flowers.
- This conclusion can be drawn because the statement establishes that all roses are flowers and some flowers are red. Since roses fall under the category of flowers, and some red things are beautiful, it can be inferred that there are beautiful things that are also flowers. This conclusion does not imply that all beautiful things are flowers, as there may be beautiful things that are not flowers.

Other conclusions:

A: All beautiful things are roses.
- This conclusion cannot be drawn because the statement does not provide any direct link between all beautiful things and roses. While it is stated that some red things are beautiful, it does not necessarily mean that all beautiful things are roses.

D: Some red things are roses.
- This conclusion cannot be drawn directly from the given statement. Although it is stated that all roses are flowers and some flowers are red, it does not necessarily mean that some red things are roses. There may be other red things that are not roses.

E: All red flowers are beautiful.
- This conclusion cannot be drawn based on the given statement. While it is stated that some red things are beautiful, it does not establish a direct link between all red flowers and beauty. It is possible for red flowers to be beautiful, but the statement does not provide enough information to make this conclusion.

All cats are animals. Some animals are mammals. No mammals can fly.
Select the conclusions which follow the statement:
  • a)
    Some cats can fly.
  • b)
    All animals are cats.
  • c)
    Some mammals are not cats.
  • d)
    No cats are mammals.
  • e)
    All mammals can fly.
Correct answer is option 'C'. Can you explain this answer?

Swati Sharma answered
1st conclusion – Does not follow because the statement explicitly mentions that no mammals can fly.
2nd conclusion – Does not follow because the statement states that all cats are animals, not all animals are cats.
3rd conclusion – Does follow because the statement allows for the possibility that some mammals are not cats.
4th conclusion – Does not follow because the statement establishes that all cats are animals and some animals are mammals.
5th conclusion – Does not follow because the statement explicitly states that no mammals can fly.

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