In covering a distance of 30 km, Arun takes 2 hours more than Anil. If Arun doubles his speed, then he would take 1 hour less than Anil. What is Arun's speed?

• arun covers 30km in x speed and (t+2)hrs
  when speed=2x time =(t-1)hrs
  solving x/2x=(t-1)/(t+2) we get t=4hrs
  ans: x= 30/(t+2)=30/6= 5kmph
  
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