Question

Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusion(s) logically follow(s) from the statements).

Statements:

All sharks are whales.

No whale is a dolphin.

Conclusions:

(1) No shark is a dolphin.

(Il) No dolphin is a whale.

• A. Only conclusion I follows.
• B. Only conclusion Il follows.
• C. Both conclusions I and Il follow.
• D. Neither conclusion I nor ll follows.

Answer 1

Answer:

C. Both conclusions I and Il follow.

Let’s analyze logically.

Given:

1. All sharks are whales → Sharks ⊆ Whales

2. No whale is a dolphin → Whales and Dolphins are completely separate

   Check Conclusion (I):

No shark is a dolphin

Since all sharks are whales, and no whale is a dolphin →
Sharks (being part of whales) also cannot be dolphins.

Conclusion (I) follows

Check Conclusion (II):

No dolphin is a whale

Given: No whale is a dolphin
This also means the reverse is true (mutual exclusivity).

Conclusion (II) follows

Final Answer:

Both (I) and (II) follow