LLN Critical Thinking & Reasoning

Question 1

If all squares are rectangles and all rectangles are parallelograms, which of the following must be true?

Accepted Answer

All squares are parallelograms.

Answer

All parallelograms are squares.

Answer

All squares are rectangles and parallelograms.

Answer

All rectangles are squares.

Question 2

If A is greater than B, and B is greater than C, which of the following must be true?

Accepted Answer

A is greater than C.

Answer

A is less than C.

Answer

B is equal to C.

Answer

A is equal to B.

Question 3

Which of the following conclusions can be made from the statement: 'All birds have feathers'?

Accepted Answer

All birds have feathers, but not all animals do.

Answer

All animals have feathers.

Answer

Some birds may not have feathers.

Answer

All animals are birds.

Question 4

If all mammals are warm-blooded and all warm-blooded animals have fur, which of the following is true?

Accepted Answer

All mammals have fur.

Answer

Some mammals may not have fur.

Answer

All warm-blooded animals are mammals.

Answer

All animals with fur are warm-blooded.

Question 5

Which of the following is an example of a valid conclusion based on the following premise? 'If it rains tomorrow, we will go to the park.'

Accepted Answer

If it rains tomorrow, we will go to the park.

Answer

If it does not rain tomorrow, we will not go to the park.

Answer

We will go to the park only if it rains tomorrow.

Answer

If we go to the park, it must rain tomorrow.

Question 6

Which of the following statements can be logically inferred from the following premise? 'No cats are reptiles, and all reptiles are cold-blooded.'

Accepted Answer

All cats are warm-blooded.

Answer

Some cats are cold-blooded.

Answer

All reptiles are cats.

Answer

Some reptiles are cats.

Question 7

If all teachers are knowledgeable and John is a teacher, which of the following is true?

Accepted Answer

John is knowledgeable.

Answer

John is not knowledgeable.

Answer

John may or may not be knowledgeable.

Answer

John is not a teacher.

Question 8

Which of the following is an example of a logical fallacy?

Accepted Answer

Answer

If it rains, the ground will get wet. It’s raining, so the ground is wet.

Answer

If I study hard, I will pass the exam. I studied hard, so I will pass.

Answer

If I am hungry, I will eat. I am eating, so I am hungry.

Answer

If I see a bird, it must be a sparrow.

Question 9

Which of the following statements is a valid argument?

Accepted Answer

If I go to the park, I will bring an umbrella. I went to the park, so I brought an umbrella.

Answer

If I study, I will pass the exam. I did not study, so I will not pass.

Answer

If it rains, I will stay home. I stayed home, so it must have rained.

Answer

If I am hungry, I will eat. I am eating, so I am hungry.