Abdul while driving to school computes the average speed for his trip to be 20 kilometre per hour on hesitantly along the same route there is less traffic and the average speed is 30 km per hour what is the average speed for Abdul trip
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hello friend!
Let the distance be x
time taken for the first trip = x/20 hrt
ime taken for the next (return) trip = x/30 hr
total time taken ( whole trip)
= x/20 + x/30
= 3x + 2x/60
=5x/60 hr
total distance = x + x = 2x ( two times, while going and returning)
avg speed = total distance / total time taken
= 2x /5x/60
= 2x x 60 / 5x
= 24 km h⁻¹
hope it helps!
Let the distance be x
time taken for the first trip = x/20 hrt
ime taken for the next (return) trip = x/30 hr
total time taken ( whole trip)
= x/20 + x/30
= 3x + 2x/60
=5x/60 hr
total distance = x + x = 2x ( two times, while going and returning)
avg speed = total distance / total time taken
= 2x /5x/60
= 2x x 60 / 5x
= 24 km h⁻¹
hope it helps!
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