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

Only I and II follow
Only II and III follow
Only II and IV follow
Either III or IV follows
All follow

Correct Answer: Either III or IV follows

Explanation:

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

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