they are losing by a score of 17 to 6....4 innings to go...each run equals 1 point........so they are losing by (17 - 6) = 11 points, which means 11 runs behind. So they would need 11 to tie...but 12 to win. 12 runs in 4 innings = 12/4 = 4 runs per inning.
answer is : 4 runs per inning to win