The countdown for a spacecraft launch was halted at 12 hours, 9 minutes, 34 seconds before liftoff. The next stop occurred 1 hour, 24 minutes, 6 seconds before liftoff. How long was it from the first halt of the launch to the second halt of the launch?
Select the correct answer.
Question 1 options:
10 hours, 35 minutes, 26 seconds
10 hours, 45 minutes, 28 seconds
11 hours, 18 minutes, 28 seconds
To find the duration between the first halt and the second halt, we need to subtract the time of the first halt from the time of the second halt.
The time of the first halt is 12 hours, 9 minutes, 34 seconds.
The time of the second halt is 1 hour, 24 minutes, 6 seconds.
To subtract these times, we start from the seconds and work our way up to the hours:
Seconds: 6 - 34 = -28 (We borrow 1 minute and add 60 seconds, so 6 - 34 + 60 = 32 seconds)
Minutes: 24 - 9 - 1 (borrowed) = 14 minutes
Hours: 1 - 12 = -11 (We borrow 1 hour and add 24 hours, so 1 - 12 + 24 = 13 hours)
Therefore, the duration between the first halt and the second halt is 13 hours, 14 minutes, 32 seconds.
Therefore, the correct answer is 11 hours, 14 minutes, 32 seconds.
The countdown for a spacecraft launch was halted at 12 hours, 9 minutes, 34 seconds before liftoff. The next stop occurred 1 hour, 24 minutes, 6 seconds before liftoff. How long was it from the first halt of the launch to the second halt of the launch?
Select the correct answer.
Question 1 options:
A .10 hours, 35 minutes, 26 seconds
B .10 hours, 45 minutes, 28 seconds
C .11 hours, 18 minutes, 28 seconds
To find the duration between the first halt and the second halt, we need to subtract the time of the first halt from the time of the second halt.
The time of the first halt is 12 hours, 9 minutes, 34 seconds.
The time of the second halt is 1 hour, 24 minutes, 6 seconds.
To subtract these times, we start from the seconds and work our way up to the hours:
Seconds: 6 - 34 = -28 (We borrow 1 minute and add 60 seconds, so -28 + 60 = 32 seconds)
Minutes: 24 - 9 - 1 (borrowed) = 14 minutes
Hours: 1 - 12 = -11 (We borrow 1 hour and add 24 hours, so -11 + 24 = 13 hours)
Therefore, the duration between the first halt and the second halt is 13 hours, 14 minutes, 32 seconds.
Therefore, the correct answer is 11 hours, 14 minutes, 32 seconds.
Alan begins working each day at 7:50 a.m. and finishes at 5:30 p.m. He takes a one-hour lunch break, which is not included in the amount of hours he works each day. How long does Alan work each day?
Select the correct answer.
Question 2 options:
9 hours 20 minutes
8 hours 40 minutes
9 hours 40 minutes
To find out how long Alan works each day, we need to subtract the duration of his lunch break from the total time from when he begins working to when he finishes.
Alan begins working at 7:50 a.m. and finishes at 5:30 p.m.
This totals to 9 hours and 40 minutes.
Since Alan takes a one-hour lunch break, we subtract 1 hour from the total time.
9 hours and 40 minutes - 1 hour = 8 hours and 40 minutes.
Therefore, Alan works for 8 hours and 40 minutes each day.
The correct answer is 8 hours 40 minutes.
Find the total.
4 hours, 5 minutes, 11 seconds
+ 10 hours, 59 minutes, 29 seconds
———————————————
Select the correct answer.
Question 3 options:
14 hours, 54 minutes, 50 seconds
15 hours, 14 minutes, 30 seconds
15 hours, 4 minutes, 40 seconds
To find the total, we need to add the hours, minutes, and seconds separately.
Hours: 4 + 10 = 14 hours
Minutes: 5 + 59 = 64 minutes. Since there are 60 minutes in an hour, we carry over 1 hour and subtract 60 from the minutes. So 64 minutes - 60 minutes = 4 minutes.
Seconds: 11 + 29 = 40 seconds
Therefore, the total is 14 hours, 4 minutes, 40 seconds.
The correct answer is 14 hours, 4 minutes, 40 seconds.
4 hours 51 minutes
+ 3 hours 16 minutes
——————————
Select the correct answer.
Question 4 options:
8 hours 7 minutes
8 hours 17 minutes
1 hour 35 minutes
To find the total, we need to add the hours and minutes separately.
Hours: 4 + 3 = 7 hours
Minutes: 51 + 16 = 67 minutes. Since there are 60 minutes in an hour, we carry over 1 hour and subtract 60 from the minutes. So 67 minutes - 60 minutes = 7 minutes.
Therefore, the total is 7 hours, 7 minutes.
The correct answer is 7 hours, 7 minutes.
4 hours 51 minutes
+ 3 hours 16 minutes