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Solve elapsed-time problems with am and pm and convert between time units.
Free examples and worked answers. No account needed.
Practise the method.
Solve elapsed-time problems with am and pm and convert between time units.
Solve elapsed-time problems with am and pm and convert between time units.
Example 1
An activity begins at 11:40 am and ends at 1:00 pm the same day. How many minutes does it last?
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Answer: 80
- From the start to 12 noon is 20 minutes.
- From noon to the finish is 60 minutes.
- Total: 20+60=80 minutes.
Example 2
An activity begins at 11:40 am and ends at 1:30 pm the same day. How many minutes does it last?
Show worked answer
Answer: 110
- From the start to 12 noon is 20 minutes.
- From noon to the finish is 90 minutes.
- Total: 20+90=110 minutes.
Example 3
An activity begins at 11:40 am and ends at 1:15 pm the same day. How many minutes does it last?
Show worked answer
Answer: 95
- From the start to 12 noon is 20 minutes.
- From noon to the finish is 75 minutes.
- Total: 20+75=95 minutes.
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