Jon decides to take up baseball.  He can throw a fastball at 80 miles per hour.   He goes through intense training 4 times for 4 weeks each time and at the end of the last one he can throw a ball 20% faster.  How much speed (in mph) did he gain per week, assuming he gained an equal amount of speed (in mph) each week? Let's think step by step and output the final answer after "####".
user
He threw the ball 80*.2=<<80*.2=16>>16 mph faster
He was training for 4*4=<<4*4=16>>16 weeks
So he gained 16/16= <<16/16=1>>1 mph per week
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Jon decides to take up baseball.  He can throw a fastball at 80 miles per hour.   He goes through intense training 4 times for 4 weeks each time and at the end of the last one he can throw a ball 20% faster.  How much speed (in mph) did he gain per week, assuming he gained an equal amount of speed (in mph) each week?
train