Sameer went on his bike from Delhi to Gurgaon at a speed of 60km/hr and came back at a speed of 40km/hr. what is his average speed for entire journey.

CLASS - XI PHYSICS (Kinematics)

1
The question is incomplete. Distance between delhi and gurgaon is not given. The answers are wrong too.

Answers

2014-10-12T04:26:31+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Distance between Gurgaon and Delhi = S km

Time taken to go from Delhi to Gurgaon = S / 60 hours

Time taken to return = S / 40 hours

Total time = S [ 1/40 + 1/60 ] = S/24 hours

Average speed for the entire journey = total distance / total time duration 
                     =  2 S / ( S/24)  = 48 kmph
 
4 4 4