Mean/Median DS problem

This topic has expert replies
User avatar
Senior | Next Rank: 100 Posts
Posts: 77
Joined: Mon Jul 09, 2007 6:54 pm
Location: US of A

Mean/Median DS problem

by Auzbee » Mon Dec 31, 2007 1:52 am
What is the median value of the set R, if for every term in the set, Rn = Rn–1 + 3?

(1) The first term of set R is 15.

(2) The mean of set R is 36.

Master | Next Rank: 500 Posts
Posts: 214
Joined: Wed Nov 14, 2007 6:30 am
Thanked: 15 times

by sujaysolanki » Mon Dec 31, 2007 7:17 am
Evenly distributed terms have mean = median

Like say 1 2 3 4

Mean = 2.5
Median = 2.5


So in this case also 30 33 36 39 etc mean = median .. Hence B

Nice question :o

User avatar
Senior | Next Rank: 100 Posts
Posts: 77
Joined: Mon Jul 09, 2007 6:54 pm
Location: US of A

by Auzbee » Mon Dec 31, 2007 12:48 pm
That's the right answer.