Question 575860
1 hour = 60 min


3/4 hour = (3/4)*60 min


3/4 hour = 45 min



So 8 3/4 hr = 8 hr + 3/4 hr = 8 hr + 45 min


Now add the two times (8:30 and 8 hr, 45 min)


<pre>
  1
  8:30
+ 8:45
-------
 17:15
</pre>


which translates to 17:15 - 12:00 = 5:15 pm



So she finished work at 5:15 pm