Question

Abdul while driving to school computes the average speed for his trip to be 20 km per hour on his return trip along the same route there is a less traffic and average speed is 30 km per hour what is the average speed for Abdul trip​

Answer 1

Answer :-

while going to school the speed of abdul = 20kms/h

and while returning = 30kms/h

now average speed = [(int. speed + final speed)/2]

= [(20 + 30)/2]kms/h

= (50/2)kms/h

= 25 kms/h___ans

if satisfied then pls do not mark it brainliest...only give thanks multiple times_:)

THANKS!

Answer 2

Answer 24: km/hr

Explanation: let the distance to scho

ol be d. So total disatnce travel led is d + d = 2d. Speed while going to school = 20 km/hr.

Speed while coming back from school = 30 km/hr. time taken by Abdul while go to school = d/20.

Time taken by abdul wile coming back from school = d/30. Total time fof complete trip= d/20+d/30 = 5d/60. average speed for total trip= total distance / total time = 2d /5d /60=2d *60/5d= 24 km/hr