A car journey of 300 km lasts 4 h. Part of this journey is on a freeway at an average speed of 90 km/h. The rest is on country roads at an average speed of 70 km/h.
Let T be the time (in hours) spent on the freeway.
a) In terms of T, state the number of hours travelling on country roads.
i. The distance travelled on the freeway in terms of T
ii. The distance travelled on country roads in terms of T.
Distance Travelled =
I'm having trouble finding T, Can someone help?
ii The distance travelled on each type of road.