GATE ECE 2023 | GA Question: 6

Question

Forestland is a planet inhabited by different kinds of creatures. Among other creatures, it is populated by animals all of whom are ferocious. There are also creatures that have claws and some that do not. All creatures that have claws are ferocious.

Based only on the information provided above, which one of the following options can be logically inferred with certainty?

• A. All creatures with claws are animals.
• B. Some creatures with claws are non-ferocious.
• C. Some non-ferocious creatures have claws. 
• D. Some ferocious creatures are creatures with claws.

Answer 1

Based on the given information, we know that:

• Forestland is inhabited by different kinds of creatures, all of whom are ferocious animals.
• There are creatures with claws and some do not have them, and all creatures with claws are ferocious.

• A. All creatures with claws are animals.

  • Not necessarily true, as the information doesn't specify whether all creatures with claws are animals.

• B. Some creatures with claws are non-ferocious.

  • Not true, as the information states that all creatures with claws are ferocious.

• C. Some non-ferocious creatures have claws.

  • Not confirmed, as the information doesn't provide any indication of non-ferocious creatures having claws.

• D. Some ferocious creatures are creatures with claws.

  • ${\color{DarkGreen} \text{True}},$ as the information explicitly states that all creatures with claws are ferocious. So, there must be ferocious creatures with claws.

Correct Answer: D

Comments

this venn diagram may help