If x is not equal to -y , is (x-y)/(x+y) >1 ?
1 x> 0
2 y< 0
GMAT Prep Problem...please explain
This topic has expert replies
if x not equal to -y that indicates
(x+y) not = 0
1.consider statement 1
x>0 which indicates x is positive and here we are not aware about the value of y henec it is insufficient
2.consider statement 2
y<0 which indicates y is always negative value but x value is uknown hence it is insufficient
Considering both the statements 1 and 2 together
x is positive and y is negative
if we substitute numbers in teh above equations
suppose x = 5 and y = -2
then (x-y)/(x+y) = 7/3 >1;
suppose x = 0.5 and y =-0.4
then (x-y)/(x+y) = 0.9/0.1 = 9 which is greater then 1
hence i assume that option C would be the best ans choice for this question
Whatz the OA?
Thanks
(x+y) not = 0
1.consider statement 1
x>0 which indicates x is positive and here we are not aware about the value of y henec it is insufficient
2.consider statement 2
y<0 which indicates y is always negative value but x value is uknown hence it is insufficient
Considering both the statements 1 and 2 together
x is positive and y is negative
if we substitute numbers in teh above equations
suppose x = 5 and y = -2
then (x-y)/(x+y) = 7/3 >1;
suppose x = 0.5 and y =-0.4
then (x-y)/(x+y) = 0.9/0.1 = 9 which is greater then 1
hence i assume that option C would be the best ans choice for this question
Whatz the OA?
Thanks
I think the answer should be E.if x not equal to -y that indicates
(x+y) not = 0
1.consider statement 1
x>0 which indicates x is positive and here we are not aware about the value of y henec it is insufficient
2.consider statement 2
y<0 which indicates y is always negative value but x value is uknown hence it is insufficient
Considering both the statements 1 and 2 together
x is positive and y is negative
if we substitute numbers in teh above equations
suppose x = 5 and y = -2
then (x-y)/(x+y) = 7/3 >1;
suppose x = 0.5 and y =-0.4
then (x-y)/(x+y) = 0.9/0.1 = 9 which is greater then 1
hence i assume that option C would be the best ans choice for this question
Whatz the OA?
Thanks
As the absolute value of x can be less than y, in which case (x-y)/(x+y) <1
for Example, lets take x =2, y=-3
so (x-y)/(x+y) = 5/-1 , which is less than 1
so, the data is not sufficient (E)
-
- Master | Next Rank: 500 Posts
- Posts: 165
- Joined: Wed May 28, 2008 11:25 pm
- Thanked: 9 times
- GMAT Score:730