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secondary 4 | E Maths
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Kathy
Kathy

secondary 4 chevron_right E Maths chevron_right Singapore

Thank you

Date Posted: 5 years ago
Views: 205

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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)
1st
In this case, the total time taken for the journey includes the rest time, so the average speed takes the rest time into account.

Final answer is 48/7 km/h which is about 6.86 km/h.
Kathy
Kathy
5 years ago
my book anwer not same with yours
Eric Nicholas K
Eric Nicholas K
5 years ago
Forgot that a two-way journey means 48 km in the forward direction and 48 km in the reverse direction, for a total of 96 km. Hopefully the answer is correct this time!
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Eric Nicholas K
Eric Nicholas K's answer
5997 answers (Tutor Details)