<PRE><B>Question 932970</B>
Let 35min = the duration of the car traveled
    69kph = the speed of the car
A car reached raipur from ranchi in 35 minutes with an average speed of 69km/hour.
Distance = (rate)(time)
       d = (69)(35)
       d =  2415/60
       d =  40.25
            
If average speed is increased by 36 km/hr
   40.25 = (69+36)t
   40.25 =  105t
(.38)(60)=   t 
     23  =   t

The it took to reach raipur with a speed of 105kph is 23 minutes.
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