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Janaki went to attend her mathematics class at 9:45 a.m. and came out at 11:40 a.m. What was the duration of her mathematics class?
  • a)
    1 hour 55 minutes
  • b)
    1 hour 45 minutes
  • c)
    1 hour 30 minutes
  • d)
    1 hour 50 minutes
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
Janaki went to attend her mathematics class at 9:45 a.m. and came out ...
Janaki goes to classat = 9:45 a.m.
Janaki comes back home at = 11:40 a.m.
The time she spends in her maths class = 11:40 - 9:45 
         = 1:55
     = 1 hours 55 minutes
Thus, Janaki spends 1 hours and 55 minutes in the math class.
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Most Upvoted Answer
Janaki went to attend her mathematics class at 9:45 a.m. and came out ...
Duration of Janaki's Mathematics Class

To find the duration of Janaki's mathematics class, we need to calculate the difference between the time she entered the class and the time she came out.

Given information:
- Janaki went to attend her mathematics class at 9:45 a.m.
- She came out at 11:40 a.m.

Calculating the Duration

To calculate the duration, we need to subtract the starting time from the ending time. Let's convert the time into minutes for easier calculation.

Starting time: 9:45 a.m.
- Convert 9:45 a.m. into minutes: 9 * 60 + 45 = 585 minutes

Ending time: 11:40 a.m.
- Convert 11:40 a.m. into minutes: 11 * 60 + 40 = 700 minutes

Now, subtract the starting time from the ending time to find the duration:
Duration = Ending time - Starting time
Duration = 700 minutes - 585 minutes
Duration = 115 minutes

Converting the Duration into Hours and Minutes

Since the duration is in minutes, we need to convert it into hours and minutes format.

1 hour = 60 minutes

Divide the duration by 60 to get the hours:
115 minutes ÷ 60 = 1 hour

The remainder will give us the minutes:
115 minutes % 60 = 55 minutes

Therefore, the duration of Janaki's mathematics class is 1 hour 55 minutes.

Answer
The duration of Janaki's mathematics class is 1 hour 55 minutes (option A).
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Janaki went to attend her mathematics class at 9:45 a.m. and came out at 11:40 a.m. What was the duration of her mathematics class?a)1 hour 55 minutesb)1 hour 45 minutesc)1 hour 30 minutesd)1 hour 50 minutesCorrect answer is option 'A'. Can you explain this answer?
Question Description
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