chetan2u wrote:

Is x an integer?

(1) 7x is an integer

(2) x \(\neq{\frac{1}{7}}\)

New question!!!..

Question stem:- Is x an

integer?

St1:-

7x is an integerPossibilities of x:- 'Integer(Such as -1,1,0 etc.), rational numbers(such as -1/7,1/7 etc or any number with 7 in denominator)

No unique value of x.

Insufficient.

St2:-

x \(\neq{\frac{1}{7}}\)Possibilities of x:- 'Integer(Such as -1,1,0 etc.), rational numbers(such as -1/2,1/2 etc except 1/7)

No unique value of x.

Insufficient.

Combined, x can be integers and fractions too.

Insufficient.

Ans. (E)

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Regards,

PKN

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