a boy walks to his school at a distance of 6km with a speed of 2.5 km/hr and walks back with a constanct speed of 4km/hr. his average speed for round trip in km/he is?? ( i need solution)
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Time taken to reach school=6/2.5
=2.4 hr
Time taken to come back=6/4
=1.5hr
Avg.speed=total distance/total time
6+6/2.4+1.5
=3.07 km/hr
=2.4 hr
Time taken to come back=6/4
=1.5hr
Avg.speed=total distance/total time
6+6/2.4+1.5
=3.07 km/hr
Krishna2492003:
is it wrong?
coz the standard time in physics is
seconds
Since its in km I answerd in hours.....u can convert it by multiplying 5/18
yes
so it would be one and the same?
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