Is m NOT EQUAL TO n?
1) m+n<0
2) mn<0
My approach was
From Statement 1 : m<-n therefore yes sufficient
From Statement 2 : one of the numbers should be negative.Therefore sufficient
My answer was D
But OG says the answer is B.Please explain where i went wrong
Thanks
Peer
OG 11 DS#99
This topic has expert replies
-
- Junior | Next Rank: 30 Posts
- Posts: 28
- Joined: Wed Mar 19, 2008 5:16 pm
- Thanked: 1 times
i) m+n<0
1. m is -ve and n is +ve where -m>n
2. m is +ve and n is -ve where -n>m
3. m is -ve and n is -ve
In the 3rd case, m and n can be same. Eg -2. (-2)+ (-2)=-4 which is <0.
This condition is INSUFFICIENT.
Thus answer is B.
1. m is -ve and n is +ve where -m>n
2. m is +ve and n is -ve where -n>m
3. m is -ve and n is -ve
In the 3rd case, m and n can be same. Eg -2. (-2)+ (-2)=-4 which is <0.
This condition is INSUFFICIENT.
Thus answer is B.
-
- Junior | Next Rank: 30 Posts
- Posts: 28
- Joined: Wed Mar 19, 2008 5:16 pm
- Thanked: 1 times