After winning 50 percent of the first 20 games it played, Team Red won all of the remaining games it played. What was the total number of games that Team Red won?
(1) Team Red played 25 games altogether
(2) Team Red won 60 percent of all the games it played
1) total games played = 25; so 25 includes first 20 games of which team red won 50% meaning 10 and team red won all the remaining games they played - which means of the 5 remaining games (25-20) they won all 5; so total games won 10+5 = 15;;;; hence sufficient
2) we can set up the eqn as follows: assume total games played by team red = \(x\)
so \(10 + (x-20) = (0.6).x\)
solving for \(x = 25\)
So D ..... each stmt is sufficient.
however usually on the gmat both choices lead to the same answer. I dont know why this one is leading to two diff answers...