The Rath Family drove to the beach at 85 kmph. They returned by a different route at 70 kmph. Each trip took the same time, but the return trip was 30 km shorter. How long did each trip take?
idk... would the formula be
85x=70(x-30)?
D/85 =[D-30]/70, solve for D
D=170km - outgoing distance to the beach
170-30 =140 km-return distance
170/85 =2 hours - time taken to get to the beach.
[170 - 30] / 70 =2 hours - return time.
Thanks! ily 'guest' xoxo
