Question

A cyclist travels at 10km/hr for 2hr and then at 13km/hr for 1hr. Find average speed
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Answer 1

Answer:

speed1= 10km/hr

time1= 2hr

thus, distance1= speed1/time1= 10/2 = 5km

speed2= 13km/hr

time2= 1hr

thus, distance2= speed2/time2= 13/1 = 13km

average speed=total distance/ total time

= (distance1+ distance2)/ (time1+time2)

= (5+13)/ (2+1)

=18/3

=6km/hr

thus the avg speed of he car is 6km/hr

hope it helps you...

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