Hi,

a man walking with a speed of 5 km/hr reached his target 5 minutes late. 

if he walks at a speed of 6 km/hr, he reached on time

Note:  D = rt   (distance the same both ways)

Question states*** takes 5min longer at 5kmph 

 

          t = 5/12 hr     and D = 



and...

  

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