Question

I went from my house to a playground,300 meters away in 10 minutes.I ran back and reached in 2 minutes.What was my average speed? (answer in km/hr)​

Answer 1

Answer:

3km/hr

Step-by-step explanation:

Average speed= Total distance÷Total time

Average speed= 300+300 m/10+2 min

Average speed=0.6km/0.2

Average speed=3km/hr

Answer 2

Answer:

0.28km/hr

Step-by-step explanation:

average speed= total distance ÷ total time

total distance here

300 m + 300m

=600 m

total time

= 10+2 = 13 minutes or 780 seconds

then,

s=600÷780=0.769 m/s

we need in km/hr

600 m = 0.6 km

13 min or 780 sec =0.217 hr

Average speed= 0.6÷0.217

=0.28 km/hr.