Determine if lsquo Z rsquo is a positive integer or not i Z7 gt Z ii Z8 gt Z ........

Quantitative Aptitude(IBPS CL) Data Sufficiency

Directions: Each question below is followed by two statements I and II. You have to determine whether the data given in the statement is sufficient for answering the question.
You should use the data and your knowledge of Mathematics to choose the best possible answer.

Determine if ‘Z’ is a positive integer or not?

i. Z7 > Z

ii. Z8 > Z

The data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question

The data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question.

The data either in Statement I or in Statement II alone are sufficient to answer the question.

The data in both Statements I and II together are necessary to answer the question.

The data even in both Statements I and II together are not sufficient to answer the question.

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Explanation:

If Z is positive then only Z⁷is positive So, statement I alone is sufficient to answer the question
If Z is positive then Z⁸ is positive
If Z is negative then Z⁸is positive
So, statement II alone is not sufficient to answer the question