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If all birds can fly and some animals cannot fly, which of the following must be
If all birds can fly and some animals cannot fly, which of the following must be true?
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Practice Questions
1 question
Q1
If all birds can fly and some animals cannot fly, which of the following must be true?
Some animals are not birds.
All animals are birds.
All birds are animals.
Some birds cannot fly.
Show Solution
Copy
Since not all animals can fly, it must be true that some animals are not birds, as all birds can fly.
Questions & Step-by-step Solutions
1 item
Q
Q: If all birds can fly and some animals cannot fly, which of the following must be true?
Solution:
Since not all animals can fly, it must be true that some animals are not birds, as all birds can fly.
Steps: 4
Show Steps
Step 1: Understand that all birds can fly. This means every bird has the ability to fly.
Step 2: Recognize that some animals cannot fly. This means there are animals that do not have the ability to fly.
Step 3: Since all birds can fly, any animal that cannot fly cannot be a bird.
Step 4: Therefore, it must be true that some animals are not birds because there are animals that cannot fly.
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