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Question
A man started his journey on his car from location A and came back. The given graph shows his position at different times during the whole journey.
- At what time did he start and end his journey?
- What was the total duration of journey?
- Which journey, forward or return, was of longer duration?
- For how many hours did he not move?
- At what time did he have the fastest speed?
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Solution
Analysing the graph carefully, we observe that
- He started his journey at 5:30 AM and end at 6 PM.
- Total duration of journey was 12:30 h.
- His forward journey is of duration 8:30 h and return journey is of duration 4 h. Forward journey was of longer duration.
- He did not move from 6:30 AM to 9:30 AM and 10 AM to 1 PM. So, he did not move for 6 h.
- He have the fastest speed at 1 PM.
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