A girl moves with a speed of 6km/h for 2hours and with the speed of 30km/h. Calculate the average speed for the entire journey.
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for how much time did she walked at a speed of 30km/hr??
Arian:
she returns with the speed of 30km/h
for the next 3 hours
???? i didn't understand
A girl moves with the speed of 6km/h for 2hours and with the speed of 4km/h for the next 3hours. Find the average speed of the entire journey.
ok wait
2km/hr
no no its wrong
4.8 km hr
Thanks a lot.
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