SOLUTION: Raymond cycled from Tampines to Jurong at an average speed of 30 km/h. For the first 20% of the journey, he travelled at only 20 km/h and reached Bedok where he stopped for 1/3 of
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Question 979940: Raymond cycled from Tampines to Jurong at an average speed of 30 km/h. For the first 20% of the journey, he travelled at only 20 km/h and reached Bedok where he stopped for 1/3 of an hour. After that, he travelled 36 km to reach Jurong. How long did he take to travel the 36 km?
thanksss this one is so hard
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = the total distance of the journey in km
From the given data:
km
----------------
km
For the 1st 20% of trip:
hrs
----------------
For the entire trip:
hrs
This is just the time spent cycling
---------------------------------
The time to travel the last 36 km is:
63/60 hrs = 1 hr 3 min
---------------------
By my reasoning, the legth of time he
spends stopped is irrelevant. I could
be wrong on that -you should get
another opinion.
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