How many hours and minutes are between 3:17 am and 5:27 pm on the same day?
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12 hours and 10 minutes |
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12 hours and 50 minutes |
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14 hours and 10 minutes |
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14 hours and 50 minutes |
Aussie Maths & Science Teachers: Save your time with SmarterEd
How many hours and minutes are between 3:17 am and 5:27 pm on the same day?
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12 hours and 10 minutes |
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12 hours and 50 minutes |
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14 hours and 10 minutes |
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14 hours and 50 minutes |
`text(14 hours and 10 minutes)`
`text(One strategy:)`
`text(3:17 am + 12 hours)` | `=\ text(3:17 pm)` |
`text(3:17 pm + 2 hours)` | `=\ text(5:17 pm)` |
`text(5:17 pm + 10 mins)` | `=\ text(5:27 pm)` |
`:.\ text(Time difference = 14 hours and 10 minutes)`
The running time of a documentary is 157 minutes.
Michael starts watching the documentary at 12:07 pm.
What time will the documentary end in 24-hour time?
10:10 | 13:64 | 14:04 | 14:44 | 15:17 |
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`14:44`
`text(Running time)` | `= 157\ text(minutes)` |
`= 2\ text(hours 37 minutes` |
`:.\ text(Finish time)` | `= 12:07\ text(pm + 2 hours 37 minutes)` |
`= 2:44\ text(pm)` | |
`= 14:44` |
Aslan's computer shows the time of day as 02:33.
A program takes 45 minutes to run.
What time will Aslan's computer show at the end of the program?
`3:18`
`33 + 45 = 78\ text(minutes)`
`78\ text(minutes) = 1\ text(hour and 18 minutes)`
`:.\ text(At the end, Aslan’s computer will show 03:18.)`
Brendan had to swim 400 metres in less than 8 minutes to earn his Bronze Medallion.
When he finished, he had 130 seconds to spare.
How long did Brendan take to swim the 400 metres?
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5 minutes 10 seconds |
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5 minutes 30 seconds |
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5 minutes 50 seconds |
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6 minutes 50 seconds |
`text(5 minutes 50 seconds)`
`text(S)text(econds in 8 minutes)`
`= 8 xx 60`
`= 480`
`:.\ text(Swim time)` | `= 480 – 130` |
`= 350` | |
`= 5\ text(minutes 50 seconds)` |
Tony's watch is working but showing 6:45 pm when the real time is 6:30 pm.
Tony has a dinner reservation at 7:50 pm.
When he arrived at the restaurant, his watch shows 8:20 pm.
How many minutes late to the restaurant was Tony?
minutes |
`15`
`text(Tony’s watch is 15 minutes ahead of the real time.)`
`=>\ text(He arrives at the restaurant at 8:05 pm in real time.)`
`:.\ text(He is 15 minutes late.)`
Manou is cooking dinner for some friends.
The cooking times for the three ingredients of his main meal are in the table below.
Manou starts cooking the quail at 7:15 pm.
He wants everything to finish cooking at the same time.
At what time should Manou start cooking the brown rice?
`text(8:00 pm)` | `text(8:10 pm)` | `text(8:20 pm)` | `text(8:30 pm)` |
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`text(8:20 pm)`
`text(The quail will finish cooking at 7:15 pm plus)`
`text(1 hour 25 minutes = 8:40 pm.)`
`:.\ text(Manou should start cooking the brown rice)`
`text(at 8:20 pm.)`
Renny's dress shop is open 9 am to 6 pm from Monday to Friday and 9 am to 1 pm on Saturday.
What is the total number of hours her shop is open in 1 week?
`39` | `45` | `49` | `60` |
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`49\ text(hours)`
`text(Total hours)` | `=\ text(weekday hours + weekend hours)` |
`= (5 xx 9) + 4` | |
`= 49\ text(hours)` |
Tenzing started his trek at 5:30 am.
He arrived at his destination `14 1/2` hours later.
At what time did he arrive at his destination?
`7:30\ text(pm)` | `8:00\ text(pm)` | `9:30\ text(pm)` | `10:00\ text(pm)` |
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`text(8:00 pm)`
`text(One strategy:)`
`5:30\ text(am plus)\ 14 1/2\ text(hours)` | `=\ text(5:30 pm plus)\ 2 1/2\ text(hours)` |
`=\ text(8:00 pm)` |
Richard started his jog at 1:25. He finished at 2:08.
How long did Richard jog for?
`text(35 minutes)` | `text(43 minutes)` | `text(73 minutes)` | `text(83 minutes)` |
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`text(43 minutes)`
`text(43 minutes)`
Lilly went to sleep at 10:50 pm.
She woke up at 8:35 am.
How long did Lilly sleep for?
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2 hours 15 minutes |
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9 hours 45 minutes |
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9 hours 55 minutes |
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10 hours 45 minutes |
`text(9 hours 45 minutes)`
`text(One possible strategy:)`
`text(10:50 pm plus 1:10 gets to 12:00 midnight.)`
`text(12:00 midnight plus 8:35 gets to 8:35 am.)`
`:.\ text(1 hour 10 minutes plus 8 hours 35 minutes)`
`=\ text(9 hours 45 minutes)`
Paul is driving from Wollongong to Taree via Hexham.
His estimated travel times are in the table below.
Paul plans to leave Wollongong at 8:30 am and take a 15 minute rest stop in Hexham
Using these driving times and rest time, when should Paul arrive in Taree?
about 12:00 pm | about 12:30 pm | about 1:00 pm | about 1:30 pm |
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`text(about 1:30 pm)`
`text(8:30 am plus 3 hours 20 minutes ⇒ 11:50 am)`
`text(11:50 am plus 15 minutes rest ⇒ 12:05 pm)`
`text(12:05 pm plus 1 hour 20 m minutes ⇒ 1:25 pm)`
`:.\ text(Paul arrives about 1:30 pm)`
A junior cricket game starts at 10:48 am and goes for 130 minutes.
What time does the game finish?
`text(12:18 am)` | `text(12:18 pm)` | `text(12:58 am)` | `text(12:58 pm)` |
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`text(12:58 pm)`
`text(10:48 am plus 2 hours and 10 minutes,)`
`text(is 12:58 pm.)`
Roger started work at 7:15 in the morning and finished at 6:35 in the evening.
How many hours did Roger spend working?
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`text(40 minutes)` |
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`text(1 hour 20 minutes)` |
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`text(10 hours 40 minutes)` |
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`text(11 hours 20 minutes)` |
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`text(13 hours 50 minutes)` |
`text(11 hours and 20 minutes)`
`text(7:15 am to 6:15 pm = 11 hours)`
`text(6:15 pm to 6:35 pm = 20 minutes)`
`:.\ text(11 hours and 20 minutes)`
Oliver's karate grading started at 9:15 am and went for `3 1/4` hours.
He then went straight home, which took him `3/4` hours.
What time did Oliver get home?
`text(12:30 pm)` | `text(1:00 am)` | `text(1:00 pm)` | `text(1:15 am)` | `text(1:15 pm)` |
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`text(1:15 pm)`
`text(Karate finishes at 9:15 plus 3 hours and 15)`
`text(minutes, which is 12:30 pm.)`
`text(12:30 plus 45 minutes means Oliver arrives)`
`text(home at 1:15 pm.)`
Abdul's wages are paid on the first Wednesday of each month.
His wages were paid on 5 July.
What is the date that he can expect his wages to be paid in August?
August |
`text(2 August)`
`text(S)text(ince 5 July was a Wednesday, so is 12, 19, and 26.)`
`text(July has 31 days, therefore 31 July is a Monday.)`
`=>\ text(2 August is a Wednesday.)`