12 to 1 S0 an Hour Stdiyying Start Again at 2! And Finished in 20
Elapsed Fourth dimension
Sometimes we want to detect out the elapsing of an activity. We can calculate the elapsing or time elapsed if we know the starting and finishing time. For case, if the bus starts at ix:00 a.thou. and reaches the school at 9:30 a.chiliad. the time taken by the bus to achieve school is 09:00 – 09:30 which is equal to xxx minutes. And so, the school jitney takes 30 minutes to accomplish the schoolhouse.
Let us consider some more than examples involving adding of duration of an activity.
one. Find the elapsed time from viii:00 a.yard. to 7:xxx p.m.
Solution:
Time difference from 8:00 a.grand. to 12:00 noon = 4 hours
Time difference from 12:00 noon to vii:xxx p.k. = 7 hours thirty minutes
Full time elapsed = eleven hours 30 minutes.
ii. Find the elapsed time from 1350 hours to 2200 hours.
Solution:
2200 hours - 1350 hours
Hours Minutes
2 two 0 0
- 1 3 5 0
eight 1 0
Therefore, fourth dimension elapsed = 8 hours 10 minutes.
3. What time would it be 4 hours 20 minutes after 7:10 a.m.?
Solution:
7:10 a.m. = 0710 hours
Hours Minutes
7 one 0
+ 4 two 0
one one three 0
Therefore, time afterwards 4 hours xx minutes will exist eleven:30 a.m.
Questions and Answers on Elapsed Time:
1. Complete the table based on Elapsed Time:
| S.No. | Get-go | Duration | Finishing Fourth dimension |
| (i) | xi:25 a.m. | __________ | iii:40 p.m. |
| (ii) | __________ | v hours 25 minutes | 9:20 p.m. |
| (3) | 1359 hours | __________ | ix:19 p.m. |
| (4) | eight:27 a.1000. | 30 minutes | __________ |
| (v) | 12 a.m. | __________ | 3:03 a.m. |
Answer:
(i) 4 hours 15 minutes
(ii) 3:55 p.m.
(iii) 7 hours 10 minutes
(iv) eight:57 a.m.
(v) three hours three minutes
ii. If it'due south 7:21 p.grand. now, what fourth dimension volition it be in 12 hours ?
half-dozen:21 p.k.
eight:41 p.k.
7:33 p.k.
seven:21 a.1000.
Answer: vii:21 a.1000.
3. If it's 5:00 p.m. at present, what time will it be in xxx minutes?
6:30 p.m.
v:30 a.m.
5:30 p.thou.
seven:30 p.k.
4. If it'due south four:40 p.chiliad. now, what fourth dimension volition it exist in thirty minutes ?
6:10 p.m.
5:x p.m.
5:20 p.m.
five:00 a.m.
Reply: 5 :10 p.one thousand.
5. If it'south 4:21 p.one thousand. now, what fourth dimension will information technology be in 12 hours?
vi:21 a.chiliad.
eight:41 p.chiliad.
four:33 p.m.
4:21 a.grand.
Answer:4:21 a.one thousand.
6.If it's four:21 p.m. now, what time volition it be in 2 hours ?
7:21 p.m.
6:21 p.m.
iv:23 a.m.
4:41 p.1000.
Answer: vi:21 p.g.
vii.If it's v:25 p.m. now, what time will it be in viii hours and 35 minutes?
12:00 a.m.
2:00 a.k.
12:55 p.m.
one:55 a.g.
Answer: ii:00 a.m.
8.If it's 5:25 p.m. now, what time will it be in iii hours and 30 minutes ?
ix:25 p.g.
8:55 p.m.
8:25 a.1000.
8:00 p.m.
Answer: 8:55 p.m.
ix.If a train ride starts at four:00 p.k. and ends at 7:00 a.m., how long is the train ride?
17 hours
12 hours
two hours
15 hours
Answer:15 hours
10.If a picture show starts at 7:00 p.m. and ends at 11:00 p.m., how long is the movie?
three hours
100 minutes
2 minutes
iv hours
Answer: four hours
11.If a play starts at vi:00 p.m. and ends at 9:xxx p.m., how long is the play?
2 hours
2 hours and 30 minutes
3 minutes
iii and a half hours
Answer: 3 and a half hours
12. Find the elapsed time in hours and minutes between:
(i) 0930 hours to 1445 hours
(ii) 8:10 a.m. to v:15 p.m.
(iii) 1340 hours to 2219 hours
(iv) ix:thirty p.m. to 01:46 a.thousand.
(v) 0621 hours to 2322 hours
Answers:
12. (i) 5 hours xv minutes
(2) 9 hours 05 minutes
(iii) viii hours 39 minutes
(four) 4 hours 16 minutes
(five) 17 hours 01 minute
I3. What fourth dimension would it be when it is:
(i) 4 hours 56 minutes subsequently 7:05 a.one thousand.
(ii) 12 hours 5 minutes after 9:15 p.yard.
(three) xx hours xx minutes later xi:56 a.1000.
(4) 8 hours xl minutes after ane:55 p.m.
Answers:
13. (i) 12:01 p.m.
(ii) 9:20 a.m.
(iii) next solar day eight:16 a.m.
(four) 10:35 p.m.
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