Answer:
His slugging average is 0.551.
Explanation:
Slugging average:
Sum of:
Singles multiplied by 1.
Doubles multiplied by 2.
Triples by 3.
Home runs by 4.
Divided by:
Number of at bats.
This player:
190 hits(singles + doubles + triples + homeruns)
His number of singles is:
190 - (50+4+31) = 190 - 85 = 105
His slugging average is given by:

His slugging average is 0.551.