Karen finished watching a movie at 1:10 pm. The movie lasted 1 hour 38 minutes what time did Karen started watching the movie
The Correct Answer and Explanation is:
Correct Answer:
Karen started watching the movie at 11:32 a.m.
Explanation
To determine the time Karen started watching the movie, we need to subtract the duration of the movie from the time she finished watching it. The movie ended at 1:10 p.m., and it lasted 1 hour and 38 minutes.
Let’s break this down step by step:
Step 1: Understanding the Time Format
- 1:10 p.m. is 1 hour and 10 minutes after 12:00 noon.
- We’re subtracting 1 hour and 38 minutes, which is more than an hour and over half an hour.
Step 2: Subtracting Minutes
We can’t directly subtract 38 minutes from 10 minutes (since 10 < 38).
So we borrow 1 hour (which is 60 minutes) from the hour part:
- 1 hour becomes 0 hours
- 10 minutes + 60 minutes = 70 minutes
Now, we subtract:
- 70 minutes – 38 minutes = 32 minutes
So we’re now at 12:00 p.m. and 32 minutes left.
Step 3: Subtracting the Hour
After borrowing that 1 hour, we now subtract the remaining 1 hour from 12:00 p.m.
- 12:00 p.m. – 1 hour = 11:00 a.m.
Now we add the 32 minutes:
- 11:00 a.m. + 32 minutes = 11:32 a.m.
Final Result:
Karen started watching the movie at 11:32 a.m.
She watched for 1 hour and 38 minutes, which brings her to 1:10 p.m.
Why This Matters:
Being able to subtract time accurately is important in everyday life — whether it’s catching a bus, managing a schedule, or just knowing when to leave the house. Understanding how to borrow and convert between hours and minutes helps you avoid mistakes and be more confident in time calculations.Tools
