Ajay walked at an average speed of 8 kilometre for 45 minutes and then run at an average speed of 12 kilometre for 40 minutes what was his average speed for the whole journey
Answers
Answered by
1
Distance travelled by him by walking=8km
time for which he walked =45 min
his walking time in hours
=45min/60min
=3/4hr
distance ttavelled by him by him by running=12km
time for which he ran=40 min
his running time inhr
=40min/60min
=2/3hr
Total distance travelled by him
=8km+12km
=20km
Total time taken by him
=3/4hr+2/3hr
=(9+8)/12
=17/12
average speed
=total distance/total time
=20/17/12
=20×12/17
=14.11
may it help you
Similar questions