answer if you can................
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there you go...hope this helps
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Explanation:
Speed uphill = 8km/h
Speed downhill = 32km/h
Avg speed = ?
Let distance = x
...Time uphill = x/8
Time downhill = x/32
Avg speed = 2x / x/8+x/32
=2x /32 X 5x
=124/5km/h
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