Sam went to sleep at 9:45 pm.
She woke up at 6:20 am.
How long did Sam sleep for?
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3 hours 25 minutes |
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6 hours 35 minutes |
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7 hours 25 minutes |
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8 hours 35 minutes |
Aussie Maths & Science Teachers: Save your time with SmarterEd
Sam went to sleep at 9:45 pm.
She woke up at 6:20 am.
How long did Sam sleep for?
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3 hours 25 minutes |
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6 hours 35 minutes |
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7 hours 25 minutes |
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8 hours 35 minutes |
`text(8 hours 35 minutes)`
`text(One possible strategy:)`
`text(9:45 pm plus 2:15 gets to 12:00 midnight.)`
`text(12:00 midnight plus 6:20 gets to 6:20 am.)`
`:.\ text(2 hours 15 minutes plus 6 hours 20 minutes)`
`=\ text(8 hours 35 minutes)`
Spiro's kebab shop is open 10 am to 10 pm from Monday to Friday and 10 am to midnight on Saturday.
Spiro is closed on Sunday.
What is the total number of hours Spiro's shop is open in 1 week?
`48` | `50` | `62` | `74` |
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`68\ text(hours)`
`text(Total hours)` | `=\ text(weekday hours + weekend hours)` |
`= (5 xx 12) + 14` | |
`= 68\ text(hours)` |
A new plane had test run where it took off and landed at the same airport.
The pilot took off at 5:20 am and landed `15 1/2` hours later.
At what time did the pilot land the plane?
`7:10\ text(pm)` | `8:50\ text(pm)` | `9:10\ text(pm)` | `10:50\ text(pm)` |
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`text(8:50 pm)`
`text(One strategy:)`
`5:20\ text(am plus)\ 15 1/2\ text(hours)` | `=\ text(5:20 pm plus)\ 3 1/2\ text(hours)` |
`=\ text(8:50 pm)` |
Tim set off for a walk at 6:25 in the morning and got back home at 3:45 in the afternoon.
How many hours did Tim walk for?
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`text(20 minutes)` |
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`text(7 hour 20 minutes)` |
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`text(7 hours 40 minutes)` |
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`text(9 hours 20 minutes)` |
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`text(10 hours 40 minutes)` |
`text(9 hours 20 minutes)`
`text(6:25 am to 3:25 pm = 9 hours)`
`text(3:25 pm to 3:45 pm = 20 minutes)`
`:.\ text(9 hours and 20 minutes)`
At the start of the day, a farmer drove around his property inspecting the fences and livestock.
He started the drive at 6:15 and finished at 7:04.
How long did the farmer drive for?
`text(49 minutes)` | `text(51 minutes)` | `text(71 minutes)` | `text(89 minutes)` |
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`text(49 minutes)`
`text(49 minutes)`
A truck driver plans to drive from Cairns to the Gold Coast.
The driving time for the journey is 19 hours.
The driver must stop for at least 8 hours rest after every 10 hours of driving.
What is the latest time that the driver can depart Cairns on Monday to arrive in the Gold Coast at 2 pm on Tuesday?
1 am | 11 am | 1 pm | 7 pm |
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`text(11 am)`
`text(Total travel time)` | `= 19 + 8` |
`= 27\ text(hours)` |
`:.\ text(Driver must leave Cairns)`
`= 2\ text(pm Tuesday less 27 hours)`
`= 11\ text(am Monday)`
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.)`
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.)`
Azul is running a half-marathon.
The event starts at 7:25 am.
Azul completes the run at 9:05 am.
How long did the run take Azul?
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`text(1 hour and 30 minutes)` |
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`text(1 hour and 40 minutes)` |
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`text(2 hours and 20 minutes)` |
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`text(2 hours and 40 minutes)` |
`text(1 hour and 40 minutes)`
`text(1 hour and 40 minutes)`
Mike takes 2 minutes 35 seconds to walk 1 lap of the running track.
Jordan runs 1 lap of the same track in 45 seconds.
If they start at the same time, how long after Jordan finishes will Mike finish his lap?
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`text(1 minute 50 seconds)` |
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`text(2 minutes 10 seconds)` |
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`text(2 minutes 50 seconds)` |
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`text(3 minutes 20 seconds)` |
`text(1 minute 50 seconds)`
`text(2 minutes 35 seconds – 45 seconds)`
`=\ text(2 minutes – 10 seconds)`
`=\ text(1 minute 50 seconds)`
The Olympic Games are held every 4 years.
The 30th Games were held in London in 2012.
What year will the 38th Olympics be held?
`2020` | `2038` | `2040` | `2044` |
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`2044`
`text(38th Olympics date)` | `= 2012 + (8 xx 4)` |
`= 2044` |