If s and t are two different numbers on the number line, is s+t equal to 0?
1. The distance between s and 0 is the same as the distance between t and 0.
2. 0 is between s and t.
S and T (GMAT Prep)
This topic has expert replies
-
- Master | Next Rank: 500 Posts
- Posts: 435
- Joined: Wed Nov 16, 2011 7:27 am
- Thanked: 48 times
- Followed by:16 members
GMAT/MBA Expert
- Anurag@Gurome
- GMAT Instructor
- Posts: 3835
- Joined: Fri Apr 02, 2010 10:00 pm
- Location: Milpitas, CA
- Thanked: 1854 times
- Followed by:523 members
- GMAT Score:770
For (s + t) to be equal to zero s must be equal to -t, i.e. s and t must lie on the opposite side of zero on the number line and their distance from zero must be equal.alex.gellatly wrote:If s and t are two different numbers on the number line, is s+t equal to 0?
1. The distance between s and 0 is the same as the distance between t and 0.
2. 0 is between s and t.
Statement 1: This is only possible if either s = t or s = -t.
As s and t are different numbers, s cannot be equal to t.
Hence, s = -t
Sufficient
Statement 2: This only means either s or t is negative.
Not sufficient
The correct answer is A.
Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)
Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)
Join Our Facebook Groups
GMAT with Gurome
https://www.facebook.com/groups/272466352793633/
Admissions with Gurome
https://www.facebook.com/groups/461459690536574/
Career Advising with Gurome
https://www.facebook.com/groups/360435787349781/