Quote:
Originally Posted by johny01
Hi,
If a ≠-b, is a-b/b+a <1?
1.b2 >a2
2.a — b > 1
Can you solve this. This question is from http://TestCircle.com I am being used this website for preparing my GMAT?
Thanks!
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Hi IMo answer is B.
Here is my explanation..
Ploblem is easy if we substitute samll numbers.
consider FS1:
------------
given b2 >a2 => b>a
if b = 2, a=1 then a-b/b+a
<1
if b= 2 , a= -3 then a-b/b+a >
1
so FS1 alone is not sufficient.
Consider FS2:
-------------
given
a — b > 1 => a > 1+b
for any values of a and b, which satisfy this condition the value of
a-b/b+a is >
1
Ex : b= -10, a = -8
b = 1, a= 3
b = -10 a= 8 etc
so FS2 alone is sufficient.
So answer is B.
I hope this is clear.