Question

Calculate the average speed of a complete round trip in which the outgoing 210km is covered at 98km/h , followed by a 1.0-h lunch break, and the return 210km is covered at 52km/h .

Answer 1

find the times for the moving legs from t=distance/velocity
add the lunch break to the two times and get
average velocity = total distance / total time

Answer 2

67.96?

Answer 3

should be 210/98 + 210/52 + 1 = total time

total distance = 2 x 210

I got 58 and a fraction

Answer 4

m/h?

Answer 5

58 km/h

Answer 6

No. km/hr

Answer 7

Yes I got it thanks

Answer 8

average velocity?

Answer 9

average velocity = total distance/total time
usually called "average speed"

If they are trying to be tricky, using "velocity" rather than speed,
velocity being a vector displacement per time, in which case, they went nowhere net and the average velocity is 0.

Answer 10

thanks

Answer 11

You are quite welcome.