sum of integers in 2 different sets is equal...

This topic has expert replies
Junior | Next Rank: 30 Posts
Posts: 10
Joined: Mon Dec 15, 2008 6:27 pm
Location: Atlanta, GA
The sum of the integers in list S is the same as the sum of integers in list T. Does S contain more integers than T?

(1) The average (arithmetic mean) of the integers in S is less than the average of the integers in T

(2) The median of the integers in S is greater than the median of the integers in T

The OA is B, but i'm confused as to why...

It doesn't say only positive integers, so couldn't you theoretically add a negative number (and its absolute value) to not change the average, but add two more integers?

Junior | Next Rank: 30 Posts
Posts: 25
Joined: Fri Jan 23, 2009 11:57 am
Location: Minneapolis
Thanked: 1 times

I think the answer is A

by peddisetty » Sat Jan 24, 2009 5:32 pm
Since their sum is same. Avg is inversely proportional to no of integers. So if the no of integers are more, avg would be less. By this we can say which one has more no of integers.

Thanks,
Raj Peddisetty.
Raj Peddisetty

Senior | Next Rank: 100 Posts
Posts: 97
Joined: Mon Jan 05, 2009 11:04 pm
Thanked: 2 times

by sjd00d » Sat Jan 24, 2009 6:47 pm
shouldn't the answer be A?

Junior | Next Rank: 30 Posts
Posts: 10
Joined: Mon Dec 15, 2008 6:27 pm
Location: Atlanta, GA

by cooperbaker » Sat Jan 24, 2009 11:43 pm
sjd00d wrote:shouldn't the answer be A?
Sorry, yes A is correct!

Senior | Next Rank: 100 Posts
Posts: 52
Joined: Mon Jun 07, 2010 8:36 pm
Location: India
Thanked: 3 times
Followed by:1 members
GMAT Score:720

by monusangeeta » Sat Oct 02, 2010 12:14 pm
Dear Experts,

I am restarting this thread as I don't understand the solution fully and need your help.

The sum of the integers in list S is the same as the sum of the integers in list T. Does S contain more integers than T?

1) The average (arithmetic mean) of the integers in S is less than the average of the integers in T.

2) The median of the integers in S is greater than the median of the integers in T.

My approach is:

Statement 1: Avg of S< Avg of T

Lets take data: S = 1,2, 3, 4 avg is 2.5, sum is 10, T = 4, 6 Sum is 10, avg is 5 => S>T - Not sufficient

Statement 2: I am not sure how to approach to statement 2.


I will post the answer subsequently.

Many thanks.

Legendary Member
Posts: 759
Joined: Mon Apr 26, 2010 10:15 am
Thanked: 85 times
Followed by:3 members

by clock60 » Sat Oct 02, 2010 1:01 pm
hi guys
recently i struggled with the same problem, but did not obtain oa. i see now that my answer is correct, for those who are interested follow below link
https://www.beatthegmat.com/integer-t67285.html