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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Aussie Maths & Science Teachers: Save your time with SmarterEd
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` |
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)` |
Kate buys a new computer.
The disk in its hard drive makes 120 full turns every second.
How many minutes will it take for the disk to make 324 000 full turns?
minutes |
`45\ text(minutes)`
`text(Turns in 1 minute)`
`= 120 xx 60`
`= 7200`
`:.\ text(Minutes needed)`
`= (324\ 000)/7200`
`= 45\ text(minutes)`
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.)`
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)`