Class 4 Exam > Class 4 Questions > Maureen started her homework at 7.20 p.m. She...
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Maureen started her homework at 7.20 p.m. She finished it at 8.05 p.m. How long did she take to do her homework?
- a)40 minutes
- b)45 min
- c)50 min
- d)55 min
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
Maureen started her homework at 7.20 p.m. She finished it at 8.05 p.m....
She took 45 mins to complete her homework.
Most Upvoted Answer
Maureen started her homework at 7.20 p.m. She finished it at 8.05 p.m....
The question asks for the amount of time it took Maureen to complete her homework. We are given that she started at 7.20 p.m. and finished at 8.05 p.m. We need to subtract the starting time from the finishing time to find the duration.
Subtracting the starting time from the finishing time
To find the duration, we subtract the starting time from the finishing time. Let's break down the calculation:
Finishing time: 8.05 p.m.
Starting time: 7.20 p.m.
Subtracting the minutes
We start by subtracting the minutes. In this case, Maureen started at 20 minutes past the hour and finished at 5 minutes past the hour. To subtract these, we need to borrow 1 hour and add 60 minutes to the finishing time:
8.05 p.m. - 7.20 p.m. = 7.65 p.m.
Adding 60 minutes to the finishing time:
7.65 p.m. + 60 minutes = 8.25 p.m.
Subtracting the hours
Now we subtract the hours. In this case, Maureen started at 7 p.m. and finished at 8 p.m. We subtract these hours:
8.25 p.m. - 7 p.m. = 1.25 hours
Converting to minutes
To convert the hours to minutes, we multiply the decimal part by 60:
1.25 hours * 60 minutes = 75 minutes
Determining the duration
Now we have the duration in minutes. Maureen took 75 minutes to complete her homework.
Matching the answer to the options
Looking at the given options:
a) 40 minutes
b) 45 minutes
c) 50 minutes
d) 55 minutes
None of these options match the calculated duration of 75 minutes. Therefore, the correct answer is not provided in the options.
Subtracting the starting time from the finishing time
To find the duration, we subtract the starting time from the finishing time. Let's break down the calculation:
Finishing time: 8.05 p.m.
Starting time: 7.20 p.m.
Subtracting the minutes
We start by subtracting the minutes. In this case, Maureen started at 20 minutes past the hour and finished at 5 minutes past the hour. To subtract these, we need to borrow 1 hour and add 60 minutes to the finishing time:
8.05 p.m. - 7.20 p.m. = 7.65 p.m.
Adding 60 minutes to the finishing time:
7.65 p.m. + 60 minutes = 8.25 p.m.
Subtracting the hours
Now we subtract the hours. In this case, Maureen started at 7 p.m. and finished at 8 p.m. We subtract these hours:
8.25 p.m. - 7 p.m. = 1.25 hours
Converting to minutes
To convert the hours to minutes, we multiply the decimal part by 60:
1.25 hours * 60 minutes = 75 minutes
Determining the duration
Now we have the duration in minutes. Maureen took 75 minutes to complete her homework.
Matching the answer to the options
Looking at the given options:
a) 40 minutes
b) 45 minutes
c) 50 minutes
d) 55 minutes
None of these options match the calculated duration of 75 minutes. Therefore, the correct answer is not provided in the options.
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Community Answer
Maureen started her homework at 7.20 p.m. She finished it at 8.05 p.m....
7.20 pm to 8 pm = 40 mins
8 pm to 8.05 pm= 5 mins
40 +5=45mins
8 pm to 8.05 pm= 5 mins
40 +5=45mins
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Maureen started her homework at 7.20 p.m. She finished it at 8.05 p.m. How long did she take to do her homework?a)40 minutesb)45 minc)50 mind)55 minCorrect answer is option 'B'. Can you explain this answer?
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Maureen started her homework at 7.20 p.m. She finished it at 8.05 p.m. How long did she take to do her homework?a)40 minutesb)45 minc)50 mind)55 minCorrect answer is option 'B'. Can you explain this answer? for Class 4 2024 is part of Class 4 preparation. The Question and answers have been prepared according to the Class 4 exam syllabus. Information about Maureen started her homework at 7.20 p.m. She finished it at 8.05 p.m. How long did she take to do her homework?a)40 minutesb)45 minc)50 mind)55 minCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 4 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Maureen started her homework at 7.20 p.m. She finished it at 8.05 p.m. How long did she take to do her homework?a)40 minutesb)45 minc)50 mind)55 minCorrect answer is option 'B'. Can you explain this answer?.
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