1. Only I
  2. Only II
  3. Both I and II
  4. Neither I nor II
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1 Answers

Option 1 : Only I

Let’s substitute odd numbers as 1 & 3 and even number as 2 to verify.

According to given statements after substitution

11 = 1 (true)                 13 = 1 (true)     31 = 3 (true)    

12 = 1(false)                 32 = 9 (false)

∴ Statement I alone is true.

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