1.

A man walks a speed of 6km/h for 1km and 8km/h for next 1 km. What is average speed for walk of 2km.

Answer» HII..
Here is your answer..

Solution:-
Speed = 6km/h 

distance  = 1 KM 

Time = distance / speed = 1/6 h 

CASE

Speed = 8 km/h 

Distance = 1 km 

Time = distance / speed = 1/8  h 
Now,
average \: speed =  \frac{total \: distance}{total \: time}  \\  =  >  \frac{1 + 1}{ \frac{1}{6} +  \frac{1}{8}  }
=  >  \frac{2}{ \frac{4 + 3}{24} }  \\  =  >  \frac{24 \times 2}{7}
=  >  \frac{48}{7}  \\  =  > 6.85
Hence,
Average Speed is 6.85km/h

Hope it helps UH....✌️✌️✌️



Discussion

No Comment Found

Related InterviewSolutions