540 times .35 equals 189.
Balls and strikes do not constitute a player's batting average. A batting average is calculated according to how many hits a batter has made divided by how many at-bats he has. For instance, Ichiro Suzuki had 680 At-Bats in the 2010 season. Out of those At-Bats he pulled in 214 hits. 214 divided by 680 is .315 and that is how you figure out a player's batting average.
It is 23 hits exactly.
To calculate batting average you need to find out how many at bats the player had. This is plate appearances minus walks minus hit by pitches much sacrifice bunts and flys. Then you need to find out how many of those at bats resulted in hits. Take the number of hits and divide it by the number of at bats. This will give you batting average.
During his career, Jorge Posada had 1,664 hits in 6,092 at bats.
Jeter has 35 hits w 129 at bats thru the 2011 season
Your typical starting position player figures to get about 500 at bats, assuming they play most of the season.
Hank Aaron had 3,771 career hits in 12,364 at bats for a .305 batting average.