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17 Aug 2018, 23:47
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E
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Difficulty:
25%
(medium)
Question Stats:
69% (00:45) correct
31%
(00:44)
wrong
based on 84
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Is x an integer?
(1) 7x is an integer
(2) x \(\neq{\frac{1}{7}}\)
(1) 7x is an integer
(2) x \(\neq{\frac{1}{7}}\)
Chetan's questions
saurabh9gupta
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17 Aug 2018, 23:53
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Is x an integer?
(1) 7x is an integer
(2) x ≠17
Ok so i find these questions a bit tricky..
Here is my take-
1. As per this, if x =1/7.. then 7x is an integer but x is not an integer.
X can be 2 then 7x and x both are integer
NS
2. x=1/7
Ns as x can be anything but 1/7
Reject ADB
Now combining...
What if x = -1/7
Then x is not an integer but 7x is integer
So E
Posted from my mobile device
(1) 7x is an integer
(2) x ≠17
Ok so i find these questions a bit tricky..
Here is my take-
1. As per this, if x =1/7.. then 7x is an integer but x is not an integer.
X can be 2 then 7x and x both are integer
NS
2. x=1/7
Ns as x can be anything but 1/7
Reject ADB
Now combining...
What if x = -1/7
Then x is not an integer but 7x is integer
So E
Posted from my mobile device
17 Aug 2018, 23:55
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Statement 1 is clearly insufficient as x can assume a range of values.
Statement 2, is also insufficient, for the same reason. x = integer or any other fraction.
Combining statement 1 and 2, x can be an integer or any fraction again. Thus, both statements together are insufficient.
Hence, E.
Posted from my mobile device
Statement 2, is also insufficient, for the same reason. x = integer or any other fraction.
Combining statement 1 and 2, x can be an integer or any fraction again. Thus, both statements together are insufficient.
Hence, E.
Posted from my mobile device
