What is the value of |x+7|?
1. |x+3| = 14
2. (x+2)^2 = 169
Well the ans is D.
But can anyone please explain what is wrong with C
Modulus DS Prob
This topic has expert replies
-
- Master | Next Rank: 500 Posts
- Posts: 106
- Joined: Wed Feb 04, 2009 6:09 am
- Location: Louisville, KY
- Thanked: 8 times
I agree it should be C.Kumar007 wrote:What is the value of |x+7|?
1. |x+3| = 14
2. (x+2)^2 = 169
Well the ans is D.
But can anyone please explain what is wrong with C
1. x could be either 11 or -17 INSUFFICIENT
2. x could be either 11 or -15 INSUFFICIENT
Combine both together so that x = 11 and you have your answer.
Must be C.
Where did this come from?