Question

kristin drove to her friend's house and back. on the trip there she drove 40 km/h and on the return trip she went 50 km/h. how long did the trip there take if the return trip took four hours?

Answer 1

50km/he=4hr

40km/he=?

40*4/50

=3hr12min

4hr+3hr 12min

=7hr12min