A cyclist travels at 8 km/hr for 15 minutes and then 6 km/hr for 25 minutes.His average speed is?
Answers
Answered by
2
Step-by-step explanation:
speed=6km/h=6×1000m/60=100m/min
time=25min.
distance=speed×time
=25×100
=2500m
Now, speed=8km/h =8×1000min/60
=133.3m/min
time=15min
distance=speed×time
=15×133.3
=2000m
avg.speed =total distance /total time
=2000+2500/15+25
=1400/40
=112.5m/min
HOPE ITS HELPS
Answered by
3
Speed = s = 8km/hr
speed = s' = 6km/hr
time = 15min
time = t' = 25min
d = 120km
Average speed = total Distance/total time
= (120 + 150)/(15 + 25 )km/min
= 270/40 km/min
= 6.75 km/min
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