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)
_________________
Regards,
PKN
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