If the mean of set S is 20, what is the median of set S ?
1. In set S there are as many numbers larger than 20 as there are numbers smaller than 20.
2. All numbers in set S are even integers.
OA - E
5-Day Free Trial
5-day free, full-access trial TTP
Available with Beat the GMAT members only code
MORE DETAILS
Set S
This topic has expert replies
-
crackgmat007
- Legendary Member
- Posts: 882
- Joined: Fri Feb 20, 2009 2:57 pm
- Thanked: 15 times
- Followed by:1 members
- GMAT Score:690
Very tough...
(1) As many numbers larger as smaller than 20.
could be either (18, 20, 22) or (18,18,21,23) with both diff. median insuff.
(2) All numbers are even integers
could either be (18, 20, 22) or (14, 22, 24)
insuff.
(1&2) could either be (18,18,22,22) or (14,18,24,24).
insuff.
(1) As many numbers larger as smaller than 20.
could be either (18, 20, 22) or (18,18,21,23) with both diff. median insuff.
(2) All numbers are even integers
could either be (18, 20, 22) or (14, 22, 24)
insuff.
(1&2) could either be (18,18,22,22) or (14,18,24,24).
insuff.
