Question

make it fast please please please make it fast​

Answer 1

Step-by-step explanation:

velocity during A to B (u) = 10m/s

velocity during B to A (v) = 20m/s

So, Average velocity = u + v /2 = 10 + 20 /2

= 15m/s

and Average speed = Total distance/total time

= X+X / X/10+X/20 = 2X / 20X+10X/10×20

= 2×20×10 / 20+10 = 400/30

= 13.33m/s

hope it helps.

please mark it as brainliest.