If x is an integer, what is the value of x?
(1) 1/5 < 1/(1 + x) < 1/2
(2) (x – 3)(x – 4) = 0
Kudos for a correct solution.
Hi Bunuel ,
If i am wrong at st 1 using the inequality .please correct me and show the correct approach for this kind of inequality .
St (1) 1/5 < 1/(1 + x) < 1/2
As x integer -- it can be positive and negative .
so we cant cross multiple and solve the the above st .
not sufficient .
St 2
(x – 3)(x – 4) = 0
So can x is either 3 or 4
Not sufficient
Together ---- putting the value of x = 3 or 4 from st 2 and putting them in st 1
1/5 < 1/(1 + x) < 1/2
x= 3
0.2 < 0.3 <0.5
x=4
0.2 < 0.25 < 0.5
Hence together not sufficient .
E ans
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