Is (x - y) > (r - s)
A. x > r and y < s
B. xy < rs
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gmatmachoman
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from 1:
Since x>r and y<s, we are subtracting a smaller quantity from a bigger quantity. So, (x - y) > (r - s) is always true.
Sufficient.
from 2:
xy<rs
x,y,r,s,xy,rs, Is (x - y) > (r - s)
3,4,5,3,12,15, NO
3,-4,5,3,-12,15, YES
Not Sufficient
IMO answer A
Since x>r and y<s, we are subtracting a smaller quantity from a bigger quantity. So, (x - y) > (r - s) is always true.
Sufficient.
from 2:
xy<rs
x,y,r,s,xy,rs, Is (x - y) > (r - s)
3,4,5,3,12,15, NO
3,-4,5,3,-12,15, YES
Not Sufficient
IMO answer A
"Choose to chance the rapids and dance the tides"
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gmatmachoman
- Legendary Member
- Posts: 2326
- Joined: Mon Jul 28, 2008 3:54 am
- Thanked: 173 times
- Followed by:2 members
- GMAT Score:710
st 1iamseer wrote:from 1:
Since x>r and y<s, we are subtracting a smaller quantity from a bigger quantity. So, (x - y) > (r - s) is always true.
Sufficient.
from 2:
xy<rs
x,y,r,s,xy,rs, Is (x - y) > (r - s)
3,4,5,3,12,15, NO
3,-4,5,3,-12,15, YES
Not Sufficient
IMO answer A
>r and y<scan be reframed as -y>-sAddition is very much possible in equalities..( a lesson learnt from last post frm Harsha Bhai..courtesy Harsha!)
x-y>r-s
So sufficient.
for st 2: Seer has done his part...Good wrk bro!
SO pick A
