GMAT Prep

This topic has expert replies
Source: — Problem Solving |

Legendary Member
Posts: 621
Joined: Wed Apr 09, 2008 7:13 pm
Thanked: 33 times
Followed by:4 members

by vittalgmat » Sat Oct 04, 2008 5:36 pm
Is C the answer??
Pls let me know the OA.

thanks
-V

Junior | Next Rank: 30 Posts
Posts: 16
Joined: Sun Sep 21, 2008 9:12 am
Thanked: 1 times

by afterhours » Sun Oct 05, 2008 7:33 am
statement 1
int 4 is closest to x+y
3.5<=x+y<4.5
Not sufficient since no way to determine even a rough x

statement 2
.5<=x-y<1.5
same as previous
Not sufficient

statement 1/2 together
You are tempted to say:
x+y=4
x-y=1
-------
2y=3
y=3/2 and then x= 5/2 which x would be closest to 3

HOWEVER the actual equation would be:

3.5<=x+y<4.5
.5<=x-y<1.5


I would say E.

Master | Next Rank: 500 Posts
Posts: 105
Joined: Tue Jul 15, 2008 7:03 pm
Thanked: 5 times