Is Z a positive integer? A: Z'>Z. B: Z⁸>Z.

if the Statement 'A' alone is sufficient to answer the question but the Statement 'B' alone is not sufficient
if the Statement 'B' alone is sufficient to answer the question but the Statement 'A' alone is not sufficient
if you cannot get the answer from both the Statements together
if either the Statement 'A' alone or Statement 'B' alone is sufficient to answer the question

Correct answer: if you cannot get the answer from both the Statements together

Solution

Statement B (Z⁸>Z) is satisfied by Z>1 or Z<0. Statement A (Z³>Z) is satisfied by Z>1 or -1<Z<0. Together: Z>1. But Z=1.5>1 satisfies both yet is NOT a positive integer. So both statements together are insufficient to definitively answer whether Z is a positive integer.

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