A car travels 30 km at an average speed of 20 km per hour, next 40 km per hour at a speed of 30 km per hour is 30 km at for 40 km per hour. Find the average speed of the car during the whole journey?
radhajogi60:
Hurry
plz
Answers
Answered by
1
anewer is in attachment
Attachments:
thank you sooooo... muchhhh...
wlcm
Similar questions