Question

A man walks at 6km/h and runs at 8km/h .He covers 6km in 5 min partly by running and partly by walking

1. For how long did he walk?
2.What distance did he cover walking? ​

Answer 1

Answer:

When he walks,

Speed = 6 km/h

Distance = x km ( suppose)

Thus, the time taken by him in walking =   hours,

( Because, time = distance/speed )

Now, when he runs,

Speed = 8 km/h

Distance = (6-x) km, ( Because, he covers 6 km partly by walking and partly by running )

Thus, the time taken by him in walking =   hours,

Since, According to the question,

The total time taken by him in both walking and running = 50 minutes

⇒  

⇒  

⇒  

⇒  

Thus, The distance he covers in walking = 2 km,

And, the distance he covers in running = 6 - 2 = 4 km.

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