Question

43.Statements:

i.Some oxen are monkeys.
ii.No monkeys are dogs.
iii.No dogs are cats.

Conclusions:

I.Some oxen are not cats.

II.Some monkeys are cats.

III.No monkeys are cats.

IV.Some oxen are not dogs.

• A. a) Only either II or III follows.
• B. b) Either II or III, or I and IV follow.
  
• C. c) Only either II or III and I follow.
  
• D. d) Only either II or III and IV follow.

Answer 1

The correct option is D d) Only either II or III and IV follow.

43) (d)
Sol: statement (i) and statement (ii) give conclusion IV. Neither conclusion II nor conclusion III follows from Statements (ii) and (iii). But these two conclusions make a complementary pair. Hence, either II or III follows.