Question

a car travels 100km distance at a speed of 60 km/hr and returns with a speed of 40km/hr calculate its average speed for the whole journey​

Answer 1

Answer:

average = 60+40/2= 50km/hr

Answer 2

Answer:

using speed distance by time

time distance by speed

total time we have 100 by 60 plus 100 by 40 equal to 25 by 6 hour

Explanation:

average speed 200 by 25 by 6

average speed is 1200 by 25