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A man at a speed of 6 km/hr for 1 km and...

A man at a speed of 6 km/hr for 1 km and 8 km/hr for the next 1 km. What is t his average speed for the walk of 2 km?

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Verified by Experts

Distance traveled is 2 km
Time taken ` = (1km)/(6km/hr)+(1km)/(8km/hr)`
`=(1/6+1/8)hr = 7/24 hr`
`Averge speed = (2kmx24)/(7hr)=48/7 km/hr`
=7 km/hr`
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