0.75 is actually three quarters. Three quarters of an hour is equal to 45 minutes.
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In Time (Avoid Using Ordinary Mathematics):
11:20 AM - 3:00 hrs - 45 mins
= 8:20 AM - 45 mins
= 8:20 AM - 20 mins - 25 mins
= 8:00 AM - 25 mins
= 7:35 AM
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Answer:
7:35 AM