Question

A train heading north covered 240 km at 96 km/h. On the return journey heading south, the train averaged 120 km/h. How long did both trips take?

A.
0.5 h

B.
2.0 h

C.
2.5 h

D.
4.5 h

Answer 1

Do proportions, I'll do the north trip time and you do the south trip time\[\frac{ 1hour }{ 96km/h }=\frac{ xhour }{ 240km }=>96x=240=>x=\frac{ 240 }{ 96 }=2.5hours\]

Answer 2

Once you found the south trip time then add 2.5 hrs to it to get the TOTAL trip time

Answer 3

would it be 4.5 hrs then

Answer 4

Correct! :)

Answer 5

:D thank you so much

Answer 6

No Problem