Question

Statements: Some taxis have horns. Some taxis have lights.
Conclusions:
I. Every taxi has either horn or light.
II. Some taxis have neither light nor horn.
III. Some taxis have horns as well as lights.
IV. No taxi has horn as well as light.

• A. Only I and II follow
• B. Only II and III follow
• C. Only II and IV follow
• D. Either III or IV follows
• E. All follow

Answer 1

The correct option is D Either III or IV follows

Since both the premises are particular, no definite conclusion follows. However, III and IV form a complementary pair. Thus, either III or IV follows.