Owen earned $ 36 on Saturday afternoon
Solution:
Let "x" be the amount earned by Owen between morning and afternoon
On Saturday morning , Owen earned $ 24
By the end of the afternoon he had earned a total of $ 60
From given information,
Amount earned on saturday morning + Amount earned on saturday afternoon = Total money earned
Therefore,
24 + x = 60
x = 60 - 24
x = 36
Hence Owen earned $ 36 on Saturday afternoon