Question

A car travels first 60kms at speed of 20kmph and next 180km at speed of 60kmph find average velocity

Answer 1

HEY MATE HERE IS YOUR ANSWER

FIRST 60 KM = 20kmph
NEXT 80 KM = 60kmph

Total distance = 60+80=140km
Total speed = 20+60=80kmph
Time = 140/80=4/7
Average velocity= displacement / time

Displacement = 20
Average velocity = 20/4/7
5/4 is answer
No u can use formula

Answer 2

here is your answer and I hope it helps