[3:31 PM EDT - Mental Exercise: Two Stickelers in a day.]
This one should be straightforward.
Alex and his four friends have an average weight of 160 lbs. If the average weight of three of the five friends is 152 pounds, what is the average weight of the other two?
Monday, September 21, 2009 at 05:54:09 (UTC)
172
Hwan
Monday, September 21, 2009 at 14:08:36 (UTC)
Correct!
QYV