Question

Raja Travels 20 CM in 5 second and then another 40m is 5sec when is the average speed of the object is

Answer 1

Are you sure that one is 20 cm and other is 40 m?
If what you wrote is correct then here is your answer,

Average speed = Total distance/ Total time
= (0.2 m + 40 m) / (5 s + 5 s)
= 4.02 m/s

Average speed of object is 4.02 m/s

Answer 2

Hey there!!

Average speed=Total path length /total time taken
=(0.2m+40m)/(5s+5s)
=4.02m/s

Hope it helps