how many hours and minutes have passed (c) 10: 30 am and 5: 30 ?
Answers
Step-by-step explanation:
We can calculate the duration of an activity if we know the starting and finishing time. For example, if the morning assembly in a school begins at 8:00 a.m. and finishes at 8:25 a.m. the duration of assembly is the difference of finishing time and starting time.
0825 - 800 = 25 minutes.
So, if we know the starting time and the duration of an activity, we can calculate finishing time of the activity.
Time Duration (in minutes)
Ron and Clara play badminton every evening. Yesterday, their game started at 5 : 15 p.m. and finished at 5 : 50 p.m. How long did their game last?
Time Duration
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50 minutes — 15 minutes---- 35 minutes.
How to Calculate the Time Duration
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Rita left for Naira’s house at 7 : 30 p.m. She reached Naira’s house at 8:10 p.m. How long did it take her on the way?
7 : 30 p.m. → 8 : 00 p.m. → 8 : 10 p.m.
It took Rita 40 minutes to reach Naira’s house.
Time Duration (in hours and minutes)
Uma's flight took off from New Delhi at 11 : 15 in the morning (11 : 15 a.m.). When it arrived in Mumbai, her watch read 1 : 32 in the afternoon (1 : 32 p.m.). How long was the flight?
Look at the clocks.
Count the number of hours from 11 : 15 to 1 : 15. It is 2 hours.
Count by 5s and 1s to count the minutes from 1 : 15 to 1 : 32.
It is 17 minutes.
The flight was 2 hours and 17 minutes long.
Andy left his home for school at 6 : 30 a.m. He reached school after 40 minutes. At what time did he reach school?
Learn How to Calculate the Time
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30 minutes + 10 minutes
Andy reached school at 7 : 10 a.m.
Questions and Answers on Duration of Time:
1. How many minutes have passed from the time on:
(i) Clock A and Clock B __________
(ii) Clock C and Clock D __________
Duration of Time
Calculate Time Duration
Answers:
1. (i) 50 minutes
(ii) 15 minutes
2. How many hours and minutes are there between:
(i) 7:20 a.m. and 11:10 a.m.
(ii) 6:15 a.m. and 9:40 a.m.
(iii) 9:00 a.m. and 7:30 p.m.
(iv) 5:20 p.m. and 7:40 p.m.
Answers:
2. (i) 3 hours 50 minutes
(ii) 3 hours 25 minutes
(iii) 10 hours 30 minutes
(iv) 2 hours 20 minutes
3. What will be the time 6 hours 30 minutes after the following times.
(i) 9:00 a.m.
(ii) 10:45 p.m.
(iii) 6:15 a.m.
(iv) 2:30 p.m.
Answers:
3. (i) 3:30 p.m.
(ii) 5:15 a.m.
(iii) 12:45 p.m.
(iv) 9:00 p.m.
4. Fill the missing places in the table.
S.No.
Start Time
End Time
Elapsed Time
(i)
10:45 a.m.
1:15 p.m.
__________
(ii)
4:30 p.m.
11:15 p.m.
__________
(iii)
2:00 p.m.
3:15 a.m.
__________
(iv)
9:32 p.m.
__________